What is the difference between a point mutation and a frameshift mutation

1 answer:

8 0

Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide. Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame.

You might be interested in

In which compartment would fluid accumulate in edema?

drek231 [11]

Tissue(interstitial)fluid

6 0

3 years ago

DNA, the genetic material of living organisms, is damaged by light in the

insens350 [35]

Answer:

The correct option is <em>B) ultraviolet region, especially below a wavelength of 320 nm.</em>

Explanation:

Ultraviolet light carries an enormous amount of energy in it. It is invisible to the human eye. When UV light with enormous energy and wavelength lesser than 320nm, hits the DNA, it causes changes in the structure of the DNA. Mostly, it affects the thymine nitrogenous base regions and forms pyrimidine dimers. The structure of the DNA changes on all the sites where dimers form and hence, they cannot be properly transcribed.

6 0

2 years ago

Intrinsic factor A. increases gastric motility. B. causes the release of stomach acid. C. facilitates the absorption of vitamin

iren2701 [21]

Answer:

C. facilitates the absorption of vitamin B12.

Explanation:

The Intrinsic factor is a substance that is produced by the stomach and it has the important function of producing vitamin B12 which is necessary for life. Vitamin B12 is used in the production of mature red blood cells. It also improves the function of the nervous system. The production of this intrinsic factor is a very vital role of the stomach because, in the absence of a stomach, for example, in the case of a gastrectomy, a person can only survive if he is given injections of Vitamin B12.

The stomach also serves as a holding center for food and eventually delivers the food to the small intestine and the duodenum.

7 0

3 years ago

A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The

AnnyKZ [126]

I think it’s B if not sorry

4 0

3 years ago

Which of the following is true? A. The products of photosynthesis are the reactants of cellular respiration. B. The products of

slamgirl [31]

I believe the answer is D. The part where you have Photosynthesis and cellular respiration are opposite is also a true statement. IDK if that was supposed to be E or part of D. Hopefully this helps.

6 0

3 years ago

What is the difference between a point mutation and a frameshift mutation​

What is the difference between a point mutation and a frameshift mutation