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4 years ago

5. Why are insertions and deletions - sometimes called "frameshift mutations

Biology

1 answer:

Papessa [141]4 years ago

7 0

Answer:

It changes the reading of subsequent codons and, therefore, alters the entire amino acid sequence that follows the mutation, insertions and deletions are usually more harmful than a substitution in which only a single amino acid is altered.

Explanation:

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In this activity, you will determine whether each statement relates to DNA or to RNA. Based on your knowledge of DNA and RNA str

erma4kov [3.2K]

Answer:

it is double-stranded in cells and most DNA viruses - DNA

the nitrogen-containing bases are adenine (A), cytosine (C), guanine (G), and thymine (T) - DNA

it functions by determining the heredity of trait - DNA

the pentose sugar is deoxyribose - DNA

it is double-stranded in cells and most DNA viruses - DNA

Explanation:

-it is double-stranded in cells and most DNA viruses

-the nitrogen-containing bases are adenine (A), cytosine (C), guanine (G), and thymine (T)

-it functions by determining the heredity of trait

-the pentose sugar is deoxyribose

The DNA (deoxyribonucleic acid) is a double stranded molecule that has been found to be responsible for heredity of traits. It is characterized by 3 main components:

A phosphate group
A deoxyribose sugar
Purine and or pyrimidine bases

The purine bases include Adenine and Guanine while the pyrimidine bases include Thymine and Cytosine.

The DNA differs from RNA in that the RNA (ribonucleic acid) is single stranded, contains ribose sugar and instead of Thymine base, it contains Uracil.

4 0

3 years ago

What can he assume about the number of adenine

dem82 [27]

Answer: knowing that the number of adenine will be always equal to the number of thymine.

Explanation:On the basis of base pairing rule, the purine bases bonds with the pyrimidine bases. This takes place as the configurations of pyrimidine and purine bases permit formation of hydrogen bonding between the two.

The base pairing rule suggests that the pairing of adenine takes place only with thymine and pairing of guanine takes place only with cytosine. Two hydrogen bonds are produced between an adenine and thymine base pair, while three hydrogen bonds are produced between a guanine and cytosine base pair.

5 0

4 years ago

The sediment deposited by glaciers is called ______.

Sever21 [200]

Answer:

Moraine

Explanation:

4 0

4 years ago

Read 2 more answers

What is the sequence of events in the transmission of an impulse through the heart muscle?

zimovet [89]

The sequence is as follows:
c, d, a, b, f, g, e

The impulse starts at the SA node that has its own contraction rhythm (but can be faster or slower depending on other impulses or hormones). That impulse travels then through the atria and is slowed down by the atrioventricular septum except for a region in the right atrium called AV node where the impulse has continuity. The impulse travels then to the ventricles through the AV bundle. The impulse continues through bundle branches to other fibers: Purkinje fibers. These Purkinje fibers cause then a contraction that goes from the apex of the heart and rapidly through the ventricles.

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3 years ago

A biochemist is attempting to replicate a chemical reaction that commonly takes place in cells. During the chemical reaction, st

MAVERICK [17]

Addition of an enzyme, for example amylase will increase the rate at which the starch is broken down into glucose. Amylase functions by rupturing the disaccharide bonds between glucose molecules releasing these into solution. If iodine had been added as an indicator of the presense of starch, the color will fade from brown to very light in a short time.

8 0

3 years ago