You have a circular plasmid containing 9 kb of DNA, and you wish to map its EcoRI and BamHI sites. When you digest the plasmid with EcoRI and run the DNA on a gel, you observe a single band at 9 kb. You get the same result when you digest the DNA with BamHI. When you digest with a mixture of both enzymes, you observe two bands, one 6 kb and the other 3 kb in size. Explain these results. Draw a map of the restriction sites.

Answer:

O B. Restriction enzymes

Explanation:

Restriction enzymes has the ability to recognize specific DNA sequences and cut them in a specific manner in order to produced by the bacteria as a defense mechanism against foreign DNA containing substance such as viruses etc. This restriction enzyme is also called restriction endonucleases. This is a cloning tool that bacteria produced naturally in order to defend itself from the infection of virus.

Explanation:

continent----continent

Answer:

5.c 6.c 7.b 8.a

Explanation:

I hope it helps u :)

Answer:

1. red brick reflects red light and absorbs blue and green light.

The statement which is true about a red brick is: A. A red brick reflects red light and absorbs blue and green light.

An electromagnetic spectrum refers to a range of frequency and wavelength that an electromagnetic wave is distributed (extends).

Generally, an electromagnetic spectrum comprises the following radiations:

A visible light can be defined as the range of electromagnetic radiation or wavelength that the human eye can detect or see.

Also, the colors of the visible light spectrum are:

For a red brick, all red light would be reflected while the other colors such as blue and green light are absorbed.

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Answer:

BbFf is the genotype of parent Hippogriffs

Explanation:

Given -

Big beaks, B, are dominant to small beaks, b.

Brown feathers, F, are dominant to white feathers, f.

Two brown, big-beaked Hippogriffs are mated to produce 15 brown and big-beaked; 4  white and big-beaked; and 1  white and small-beaked offspring

The genotype of parents is BbFf

Genetic polymorphism is the existence of multiple alleles of a single gene.

Genes are regions of DNA which code for a particular protein or any other gene product.

Genes can exists as a single copy or as multiple copies.

Alleles are alternate forms of a particular gene.

A single gene that has two or more alleles present in a population is known as genetic polymorphism.

Therefore, multiple alleles of a single gene is known as genetic polymorphism.

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Answer:

grasslands

Explanation:

Answer:

30 protein molecules per mRNA molecule

Explanation:

In this problem, it is necessary to have into account that the transcriptional process requires six (6) phosphate bonds to synthesize one (1) codon (i.e, each three nucleotides), and also discards 95% more energy to make mRNA, it means 19 times this amount of energy >> 6 x 19 = 114 bonds. In consequence, transcription requires 120 phosphate bonds (6 + 114 = 120), while translation requires four (4) phosphate bonds per codon. From this deduction, it is possible to find the number of protein molecules synthesized with regard to the energy cost of the translation process and the transcriptional process >>> 120 bonds (transcription) /4 bonds (translation) = 30 protein molecules.

Answer:

True

Explanation:

The sun's light rays produce heat which is actually the only reason why we are not living in a block of ice.

Winter is when we are farther from the sun thus it is colder than the summer when we absorb more of the sun's rays.

The statement "the temperature of the earth's surface during different seasons is also affected by the passage of the sun's rays through the atmosphere" is definitely true.

An atmosphere may be characterized as a type of layer that significantly consists of a mixture of numerous gases that surrounds any celestial body or planet like the earth, mars, etc. The atmosphere of the earth is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.

The rays of the sun typically produce a significant amount of heat. Due to this, we are not living in a block of ice and get a source of energy directly from the sun.

During winter, the sun is farther from the surface of the sun, so we receive less amount or indirect light but in summer, we absorb more of the sun's rays. Due to this, the temperature increases and we feel extremely hot outside.

Therefore, the statement "the temperature of the earth's surface during different seasons is also affected by the passage of the sun's rays through the atmosphere" is definitely true.

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Answer:

Of the four main groups of organic molecules, Lipids are the most resistant to decay. They are also highly insoluble in water. All cells produce this type of organic compound to be used in their membranes and in energy storage. These type of organic molecules are found in kerogens

Answer:

Response and reproduction system

Explanation:

Glacial deposits, specifically till, of the same age and structure are found on many separate continents that would have been together in the continent of Pangaea. Fossil evidence for Pangaea includes the presence of similar and identical species on continents that are now great distances apart.

Answer:

Ok what is the question good sir/madam?

Answer:

Explanation:

Yes i agree with the other answer SIr or Ma'am but i don't know if this question!

Answer:

The correct answer is - option D.

Explanation:

When an individual takes drugs such as heroin, nicotine, cocaine and methamphetamine increases or promotes the neurochemical reaction that increases the amount of dopamine which is a primary factor in addiction that is secreted by neurons in the brain's reward center.

Higher dopamine levels lead to pleasure in the mind of an addict and it makes people forget the pain or stress and gives immense pleasure.

Thus, the correct answer is - option D.

Answer:

- RNA sequence: UGC

- Amino acid sequence: Cysteine

- Yes, a change in nucleotide will alter the amino acid.

Explanation:

According to this question, a DNA sequence was given as follows: ACG. The process of transcription will produce a RNA sequence from this DNA sequence using complementary base pairing i.e. A-U, G-C etc. Based on this, the mRNA sequence that will result of the DNA sequence above is UGC.

The resulting mRNA transcript is a codon (three nucleotides) that will be used in the process of translation to yield an amino acid. The mRNA sequence: UGC codes for amino acid Cysteine.

- A change in one nucleotide of the DNA will alter the corresponding amino acid because DNA sequence in a particular reading frame is responsible for the production of amino acid. Hence, a slight change in nucleotide might change the reading frame of the sequence and hence give rise to a different amino acid.

Answer:

b

Explanation:

all plants are make of prokaryotic cells.

Answer:

the other person is right, he had messed up before saying that 60 x 40 = 100, but 60 + 40 = 100. Then I had told him that his answer was wrong and that he should put the answer as 240 instead since 60 x 40 = 240 and not 100.

Explanation:

The expected ratio of offspring in the f2 generation of these genes were located on different chromosomes is 25%

A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are the histones.

Chromosomes allow DNA to be accurately copied during these cell divisions. So one more time. Chromosomes are found in the nuclei of our cells and allow DNA to be accurately copied during cell division.

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).

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Answer:

The answer is true.

In a professional environment, sexually degrading comments and actions are legally prohibited.

Answer:

1. Short-term energy storage

2. Lipids

3. Speed up chemical reactions, support cell's structure

4. Nucleic acids

Explanation:

The image comprising of a tabular representation portrays the four biological molecules, their building blocks and function. The four biological molecules in nature are carbohydrates, proteins, lipids and nucleic acids.

- Carbohydrates are biological polymers made up of monomers called monosaccharides. They function to store energy in cells for a short period of time. Examples are glucose, starch etc.

- Lipids are formed from monomers called FATTY ACIDS. They function in the long term storage of energy. Examples are phospholipids, fats etc.

- Proteins are formed from monomers called AMINO ACIDS. They provide various functions including speeding up of chemical reactions, provide cellular structure support etc. Examples are haemoglobin, melanin, hormones etc.

- Nucleic acids are polymers of NUCLEOTIDES. They function majorly in the storage of genetic information. Examples are DNA, RNA etc.

Answer:

I think the answers probably b

Answer:

myosin ATPase isoform.

Explanation:

Skeletal muscle is also known as voluntary muscle and it can be defined as a type of muscle connected with the skeleton by tendons, so as to form a mechanical system that enables the movement of the limbs and other body parts with respect to another. Skeletal are found only in vertebrates.

Basically, the length and shortening velocity determines the amount of force a muscle would generated. When a muscle is at its ideal (resting) length, it generates the greatest amount of force while it generates the least amount of force when stretched or shortened with respect to the resting length

The speed with which force is developed by skeletal muscles is determined by the myosin ATPase isoform.

Answer:

Introverts enjoy being alone because of acetylcholine) this chemical in the brain might induce a kind of happy feeling, for the introvert.

Answer:

Nervous tissue is responsible for communicating between the brain and the rest of the body

Answer:

A nerve/nervous tissue

Explanation:

Answer:

The last one

Explanation:

Answer:

the answer is down feathers. Or C

Explanation:

I just took the unit review test