It is crucial for mitosis to be error free so that the normal and healthy cells do not get transformed to form cancer cells.
Mitosis is basically a cell division in which one cell, the mother cell, divides in order to give rise to two new cells which we call as the daughters cells that are identical genetically to itself. In the cell cycle, mitosis is the process of division in which the DNA splits and forms two equal sets of chromosomes. It is important for both repair as well growth in the body.
It is very important for mitosis to be error free as any fault in the process might result in the transformation of healthy cells into cancer cells which do not have a regulated growth. These transformed cells will keep growing in numbers and give rise to tumors in the body of an individual which might lead to diseases like cancer.
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During meiosis I, assuming no crossing over, what chromatid combination(s) will be present at the completion of prophase I? Draw all possible alignments of chromatids as migration begins during early anaphase.
This is the sole time the cell has to transport DNA segments between the homologous pair since prophase I is the only time when the complex that momentarily forms between homologous chromosomes is present.
Which stage of meiosis I is the crossing over phase?In meiosis I, crossing over takes place during prophase I. It entails the exchange of genes across homologous non-sister chromatids, enabling the admixture of new, recombinant chromosomes with both mother and paternal genetic material.
In meiosis, how many chromatids and chromosomes are present?Each daughter cell will contain 23 chromosomes, or half of the original 46 chromosomes. There are two sister chromatids on each chromosome. The daughter cells now enter meiosis II, the third and last stage of meiosis. Following meiosis..
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How is the description, or details, of the cell important to the development of the story's theme? consider how the setting impacts the story's meaning.
The description setting in "The Pit and the Pendulum" of the prison cell adds to the overall theme of fear and the unpredictability of death.
In "The Pit and the Pendulum," we meet a prisoner sentenced to a slow and torturous death.
The prisoner is terrified of what is happening, and the fact that he cannot see his cell or what is going on around him only adds to his fear.
The way the author describes the prison cell reveals details that the character cannot see.
The reader understands the reader's fear of death and the unpredictability it represents in this case.
In this case, the author's description and set of details reinforces the story's theme and makes the narrative darker and more mysterious.
The question is incomplete, it should be:
How is the description, or details, of the cell important to the development of the story's theme? consider how the setting impacts the story's meaning.
"The pit and the pendulum"
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The plasma membrane gets new lipids from:
a. The lumen of the ER.
b. The lumen of the Golgi apparatus.
c. Making new lipids at the plasma membrane.
d. The nucleus.
e. None of the above.
None of the above is the correct option .
In general, the Membranes and proteins they contains are aligned inside ER. These organelle are responsible of caring the enzymes which takes part in lipid synthesis, and these lipids are generally manufactured in the ER. Main reason behind this is that lipids are hydrophobic in nature and cannot dissolve in the cytoplasm.
Hence , we can say that lipids that are folded are packed Correctly folded into COPII-coated transportable structure that are moved out from the ER membrane time to time .These vesicles then fuse with one another in order to form a vesicular tubular arrangement , that is generally moved to the microtubule tracks of Golgi apparatus.
Hence, e is correct option
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Besides forming canyons how else do you think moving water can shape the earth? Come up with at least two additional examples
Besides forming canyons, moving water can shape the earth by leading to erosion and weathering of rock particles.
What is Weathering?This is referred to as the breaking down or dissolving of rocks and minerals on Earths surface through various agents such as wind , water etc. Erosion on the other hand is the process in which earthen materials are worn away and transported by natural forces such as water etc.
The moving water also causes erosion, which occurs when pieces of earth that have been weathered and worn away are moved to another place and is the reason why they were chosen as the correct choices.
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Does natural selection increase adaptation?
Natural selection leads to adaptation, that is, to a population dominated by organisms that are anatomically, behaviorally, and physiologically well suited to survive and reproduce in a specific environment.
What will be the resulting offspring if a homozygous tall pea plant and homozygous short pea plant are crossed?
If a homozygous tall pea plant (TT) and a homozygous short pea plant (tt) are crossed, the resulting offspring will be all heterozygous (Tt) for the trait of plant height.
Each parent will contribute one allele for the trait of plant height to each offspring, and the alleles that code for tall and short plant height are dominant and recessive, respectively.
The cross can be represented using a Punnett square, which is a tool that shows the possible combinations of alleles that can result from a genetic cross. The Punnett square for the cross between a homozygous tall pea plant and a homozygous short pea plant would look like the attached picture.
Hence, all the offspring will be Tt and will exhibit the dominant trait (tall plant height) but carry the recessive allele (short plant height) and will be known as heterozygous dominant.
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1. Why do some genetic mutations lead to completely nonfunctional proteins while others do not affect the functioning of the resulting protein at all?
The type of genetic mutation is responsible for the nonfunctional or functioning of the respective proteins. Most nonsense mutations result in nonfunctional proteins.
What is a genetic mutation?A genetic mutation may be defined as the process of an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. It can result from DNA copying mistakes made during cell division, exposure to ionizing agents like UV radiations, etc.
Nonsense mutations occur when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal.
Gene variants prevent one or more proteins from working properly. By changing a gene's instructions for making a protein, a variant can cause a protein to malfunction or not be produced at all.
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Which activity is more likely to be the work of a research scientist rather than an engineer?
A. Developing safer space suits to protect astronauts
B. Creating materials to absorb thermal energy from fires
C. Finding ways to use a 3D printer to make food packaging
D. Using tools to measure radiation levels in space
Answer:
D. Using tools to measure radiation levels in space
Explanation:
You want to identify the activity that is more likely to be the work of a research scientist rather than an engineer.
EngineeringThe task of an engineer is to apply the laws of physics and the properties of materials to the creation of useful artifacts. Such artifacts may include space suits, fireproof materials, or food packaging.
ResearchThe task of a research scientist is to observe the world and the interaction of its parts. The purpose is to come to an understanding that allows prediction of future behavior.
Of the choices offered, the most likely task of a research scientist is ...
using tools to measure radiation levels in space.
The number of European water voles in the UK has declined drastically. To prevent extinction, an organisation has re-introduced water voles into areas where their populations had disappeared. This is an example of a __________ __________. What two words complete the sentence?
According to the information, this is an example of site management and monitoring.
What is Extinction?Extinction may be characterized as a type of gradual process through which there is a complete disappearance of a species from Earth. Species go extinct every year, but historically the average rate of extinction has been very slow with a few exceptions.
Vegetation management to maintain shelter and foraging resources. managing the potential risks from increased human presence and pollution. Water quality management to make sure it's maintained or improved at the site monitoring water vole populations after development.
Therefore, the reintroduction of water voles into areas where their populations had disappeared represents an example of site management and monitoring.
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Climate change has caused a lot of Arctic snow to melt. Without enough snow to reflect solar radiation, the Arctic region is absorbing heat and getting warmer. Warmer polar winds and weak summer storms are proof of Arctic warming.
Cool, powerful summer storms provide welcome relief from heat waves in northern regions such as Europe. These storms are powered by the temperature difference between the hot land and the cold Arctic. But since the Arctic has gotten warmer, the temperature difference has reduced. The smaller temperature difference has resulted in weak, mild summer storms that are unable to snap heat waves. So, Arctic warming may have contributed to the massive heat wave of 2003.
The burning of fossil fuels such as coal has resulted in global warming as a result of climate change. Climate change has caused a lot of Arctic snow to melt.
What is climate change?
Long-term changes in temperature and weather patterns are referred to as climate change. These changes may be organic, but since the 1800s, human activity has been the primary cause of climate change. This is mainly because burning fossil fuels, such as coal, oil, and gas, release gases that trap heat.
Climate change is seen in global warming.
A lot of Arctic snow has melted as a result of climate change and this is known as Arctic warming.
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How Long Will The Increase In Food Stamps Last In Texas?
Increase in Food stamps Last for One month in Texas. According to reports shown the boost in food stamps will endure for one month.
The Food Stamp Program is a program made by the US national government to furnish food to individuals with low pay. Food stamps have been being used starting around 1939, and they were made by previous Secretary of Horticulture Henry Wallace. Toward the start, they were utilized to permit individuals to purchase ranch excesses that in any case planned to squander. The program went on until 1943, when excess were not longer an issue. From that point onward, an alternate food program was made.
Additional SNAP benefits gave during the Coronavirus pandemic set to terminate in Walk 2023. Congress passed regulation laying out February of 2023 as the last month individuals can get crisis SNAP. As per the Texas lead representative, this change can't be pursued. USDA Food and Nourishment Administration expressed the additional advantages end after the Combined Allocations Act passed in December.
Hence, Food stamps last for one month.
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Generally, after neurotransmitters are released in the neuromuscular junction, many of the neurotransmitters or some of their components are recycled by a reuptake mechanism inherent in the pre-synaptic neuron. Considering that the reuptake mechanism is often a sodium-dependent process that utilizes membrane potential, what type of membrane transport might you expect to be in play here?.
Considering that the reuptake mechanism is often a sodium-dependent process that utilizes membrane potential, the type of membrane transport that might expect to play in neurotransmitters is the push active transport.
The process in question is sodium specific, meаning thаt it will depend on а flood of sodium ions in or out of the cell in order to polаrize the membrаne potentiаl аnd cаuse the аctivаtion of the trаnsport proteins. Аs for the type of membrаne trаnsport used, it is by wаy of trаnsport proteins thаt require energy to function. Therefore, we cаn confirm thаt the reuptаke of neurotrаnsmitters will be аn аctive trаnsport.
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In squirrels, grey is dominant and brown is recessive. A homozygous recessive female is crossed with a heterozygous male. Deduce how many of their offspring will be brown.
A homozygous recessive female is crossed with a heterozygous male. 25% of their offspring will be brown.
What do you mean homozygous recessive?An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive.
In a heterozygous genotype, the dominant allele overrules the recessive one. Therefore, the dominant trait will be expressed. The recessive trait won't show, but you're still a carrier.
Cystic fibrosis is one example of a homozygous recessive disease. The broken gene is involved in transporting chloride, something all cells need to do.
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Examples of the skills used in the scientific method are
Examples of the skills used in the scientific method are observing qualities, measuring quantities, and sorting/classifying, inferring.
What are scientific skills?Making effective observations is also necessary for developing the other science process skills: communicating, classifying, measuring, inferring, and forecasting.
The most basic observations, achieved solely with the senses, are qualitative observations. Science process skills are the activities that scientists engage in when studying and investigating.
Therefore, observing traits, measuring quantities, sorting/classifying, and inferring are examples of scientific method skills.
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What is the social science that studies society and social behavior?
The social science that studies society and social behavior is called sociology.
Sociology is defined as the scientific study of human social behavior, its relationships, and its institutions. This social science covers a wide range of topics, which includes social organization, social stratification, social interaction, social change, and collective behavior.
Sociologists, people who study sociology, use various ways or methods to study society, including quantitative and qualitative research, and use theories and concepts to understand and interpret social phenomena. It also, often uses other disciplines such as anthropology, economics, political science, psychology and history to understand the complexity of social phenomena.
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Answer: The social science that studies society and social behavior is called sociology.Sociology is defined as the scientific study of human social behavior, its relationships, and its institutions. This social science covers a wide range of topics, which includes social organization, social stratification, social interaction, social change, and collective behavior.Sociologists, people who study sociology, use various ways or methods to study society, including quantitative and qualitative research, and use theories and concepts to understand and interpret social phenomena. It also, often uses other disciplines such as anthropology, economics, political science, psychology and history to understand the complexity of social phenomena.
Explanation:
Which of the following would be least likely to pass through a plasma membrane without the help of a transport protein
Option (A) The likelihood of a Large polar molecule passively diffusing through a plasma membrane alone without aid of a transport protein is the lowest. By both its size and the moist interior of the membrane.
Which chemical has the lowest likelihood of successfully navigating a cell membrane on its own?The phospholipid bilayer is difficult for large hydrophilic polar or ionic molecules to pass. Because the hydrophobic tails in the interior of the phospholipid bilayer reject charges, charged atoms or molecules of any size cannot traverse the cell membrane by simple diffusion.
What chemical has the lowest chance of slipping past the plasma membrane?Because they are positively charged, sodium cations cannot cross the plasma membrane and hence cannot enter or leave the cell.
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The complete question is -
Which of the following would be least likely to pass through a plasma membrane without the help of a transport protein ?
(a) A large polar molecule
(b) A large nonpolar molecule
(c) Dissolve gases such as oxygen or carbon di oxide
(d) A small nonpolar molecule
About how often is a full moon observed from the Earths surface?A. Every two weeksB. Once each leap yearC. Once a monthD. Each a week
The pattern of lunar stages endures near a month, at 29.5 days, a period known as the synodic month. In this manner, the full moon happens ordinarily once each scheduled month, be that as it may, when the full moon occurs inside the initial two days of an allowed month.
Indeed. The Moon requires around one month to circle Earth (27.3 days to finish a transformation, however, 29.5 days to change from New Moon to New Moon). As the Moon finishes each 27.3-day circle around Earth, both Earth and the Moon are moving around the Sun.
This is viewed as the underlying or the principal day of the moon's stage. Following fifteen days or so we see the whole moon and consequently, we call it a full moon day. As we currently realize that the moon goes in a circle at a uniform speed we can presume that following fifteen days from the full moon day we will again have the new moon day.
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Which type of rna is transcribed from dna to carry a message?
An RNA type known as messenger RNA is translated from DNA to transmit a message. Single-stranded RNAs of the kind known as messenger RNA, or mRNA, are used to make proteins.
mRNA is created during transcription from a DNA template. RNA polymerase creates RNA from DNA that is functional for either messenger RNA (mRNA), which codes for proteins, or non-coding DNA (RNA genes). mRNA is produced during transcription, when the gene is transformed into main transcript mRNA by the enzyme RNA polymerase (also known as pre-mRNA). Introns, which are sections that won't ultimately code for the final amino acid sequence, are often still present in this pre-mRNA. These are eliminated during RNA splicing, leaving just exons, which are the areas that will actually encode the protein.
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Type the correct answer in the box. Spell the word correctly.
Read about the biotechnology R&D career described and fill in the blank.
Anastasia works in a laboratory at a large research hospital. The organisms she studies are too tiny to be seen without a microscope. Anastasia is a
Answer: microbiologist
Explanation:
which part of the eye changes how much light enters the eye?
Answer:
The iris
Explanation:
Hope it was helpful:)
Which of the following is unique to mitosis and not a part of meiosis?a. Homologous chromosomes pair and form bivalents.b. Chromatids are separated during anaphase.c. Homologous chromosomes behave independently.d. Homologous chromosomes crossover.
The right response is option c. The behavior of homologous chromosomes varies. There is no recombination or crossing across between during mitosis.
The two types of cell division that take place in a live cell are mitosis and meiosis. The pairing, crossing over, and separation of homologous chromosomes are characteristics of the meiosis. The number of chromosomes decreases to half during meiosis as a result of the homologous chromosomes separating.
The homologous chromosomes do not pair or exchange portions during mitosis. The number of chromosomes is not decreased because homologous chromosomes are not separated. Throughout mitosis, the homologous chromosomes remain distinct or independent.
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How do I make this into a summary ?
Palaeontologists are scientists who study the fossilized remains of plants and animals that lived long ago.
The study of fossils:
Palaeontologists have discovered fossil remains of cetaceans with skulls different from modern whales, as well as a more ancient cetacean with hind legs and a pelvis. Although the pelvis wasn't fused to the backbone and the cetacean was able to swim, its ankle bones were unique to the order of biogeography animals like bison, pigs, hippos, and deer. This indicates that evolutionary change is driven in part by geographical change, as these animals tend to be found in the same regions.
What are Fossils?
Fossils basically are the remains or traces of animals, plants, and other organisms that lived in the distant past. They can come in the form of bones, teeth, shells, footprints, or even impressions in sediment. Fossils provide valuable evidence about the history of life on Earth.
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Which kind of erosion moves dissolved salt from place to place?
A. Chemical
B. Gravity
C. Sheet
D. Wind
Answer:
A. Chemical
Explanation:
Answer: I think the answer is A
Explanation: pls forgive me if I am wrong ty
-♥ Roxy ♥
List 6 examples of waves that occur in everyday life.
Answer:
6 examoles that waves accur everyday life…
Sound WavesStadium WavesSpring WavesWater WavesSeismic WavesJump rope wavesThese are 6 examoles that waves accur in everyday life
Unit 10: Career Exploration
This activity will help you meet these educational goals:
● Content Knowledge—You will learn about the responsibilities of different types of
Biologists.
● Inquiry—You will conduct online research in which you will collect information, make
observations, and communicate your results in written form.
● 21st Century Skills—You will employ online tools for research and analysis, use critical
thinking, and communicate effectively.
Introduction
Biologists have different responsibilities based on their career choice or specialty. You have to
understand the opportunities available to you should pursue a career in this field.
__________________________________________________________________________
Directions
Task 1: Biologist Responsibilities
Research one or more of the following biology-related job fields: Field Biologist, Senior Biologist,
Conservation Biologist, Conservation Scientist, or Evolutionary Ecologist. Find a sample resume
within that field and identify some key skill sets that resume has. Are these skills that you feel you
already possess? Or would you need to grow some of these skills? Be sure to upload the sample
resume to the dropbox.
Type your response here:
There are many different job paths you might choose with this degree, but biology is a prerequisite for careers in the science and health sectors.
What is career in Biology?Relevant experience demonstrates your dedication to the field and helps you gain practical skills in a competitive employment market. It also gives you the chance to network with other professionals.
Profession experience might provide you a helpful understanding of the work if you're undecided of the area of biology you want to pursue.
You can qualify for a scholarship or bursary to help pay for your year-long industrial placement if your biology degree program includes one.
Therefore, There are many different job paths you might choose with this degree, but biology is a prerequisite for careers in the science and health sectors.
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How many molecules of water is produced from cellular respiration?
One molecule of glucose (C6H12O6) and six molecules of oxygen (O2) produce a total of 12 molecules of carbon dioxide (CO2) and 12 molecules of water in the chemical reaction that makes up cellular respiration (H2O).
The number of oxygen molecules needed for the cellular respiration of two glucose molecules is unknown.In order to complete the reaction, specifically to finish the reaction, 6 moles of oxygen are needed.
The process of cellular respiration requires how many carbon dioxide molecules?According to this chemical equation, one molecule of glucose (C6H12O6) and six molecules of oxygen gas are created when six carbon dioxide molecules (6CO2) and six water molecules (6H2O) react with light energy (6O2).
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Biologists estimate that a randomly selected baby elk has a 44% probability of surviving to adulthood. Assume this estimate is correct. Suppose researchers choose 7 baby elk at random to monitor. Let x = the number that survive to adulthood. Find the probability that exactly 4 of the baby elk survive to adulthood. Round your answer to 4 decimal places. Leave your answer in decimal form.
Answer:
0.2304
Explanation:
You want the probability that exactly 4 of 7 randomly selected baby elk survive to adulthood, given that the probability of any individual surviving to adulthood is 44%.
Binomial PDFThe probability that exactly 4 reach adulthood is ...
7C4·(0.44^4)·(1 -0.44)^(7-4) ≈ 0.2304
The probability that exactly 4 of 7 baby elk survive to adulthood is about 0.2304.
3. Identify the type of variation in the following :
(Hint: Continuous/Discontinuous, Inherited/Environmental or combination)
I. Tree-colored moths are more likely to survive and reproduce than those of a different color.
II. There are only three species of elephants: the African bush elephant, the African forest elephant, and the Asian elephant.
III. There are around 200 species of monkeys and each of these has different skull structures.
Tree-colored moths are more likely to survive and reproduce than those of a different color is Discontinuous variation. There are around 200 species of monkeys and each of these has different skull structures is continuous variation
What is a Discontinuous variation?Distinct categories are created for the many differences in discontinuous variation.Individual differences within a species which are qualitative and are termed to as discontinuous variation (categoric).Example; There are only three species of elephants: the African bush elephant, the African forest elephant, and the Asian elephant is a Discontinuous variation.
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mention for comparisons among taxis,nastism and tropic
Tropism is the term used to describe the directional movement of plants, whereas taxis is used to describe the directional movements of animals in reaction to a stimulus.
What exactly is nastism?Nastisms, also known as nastic motions, are typically found in plants and are non-directional reactions to stimuli (such as temperature, humidity, and light irradiance). Movement in plants can be caused by changes in turgor or growth, hence K+ ion concentration often regulates such movement in plants.
What distinctions exist between tropism and taxis?Tropism is defined as the directional movement of plants, whereas taxis is defined as the directional movement of animals in response to a stimulus. The most prevalent taxi types are chemotaxis and phototaxis, which react to light (in response to chemicals).
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how is selective breeding important in agriculture? please help me!
Answer: important by bringing and growing crops that yield more, stand better, or resist pests and disease more effectively
Explanation:
Answer: Look below
Explanation: Selective breeding is important because it lets the population of that organism have a variety of offspring, increasing chances of surviving. When a person uses selective breeding, it leads them to have the ability to thrive in a sustainable production system. I hope this helped!