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Orlov [11]
4 years ago
5

What do we call a change in the dna code?

Biology
1 answer:
Nonamiya [84]4 years ago
4 0
A change in DNA is called a mutation.
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What is the typical F2 ratio in the case of dominant epistasis?
inysia [295]

Answer:

12:3:1

Explanation:

<em>The typical F2 ratio in cases of dominant epistasis is 12:3:1.</em>

<u>The epistasis is a form of gene interaction in which an allele in one locus interacts with and modifies the effects of alleles in another locus</u>. There are different types of epistasis depending on the type of alleles that are interacting. These include:

  • Dominant/simple epistasis: Here, a dominant allele on one locus suppresses the expression of both alleles on another locus irrespective of whether they are dominant or recessive. Instead of the Mendelian dihybrid F2 ratio of 9:3:3:1, what is obtained is 12:3:1. Examples of this type of gene interaction are found in seed coat color in barley, skin color in mice, etc.
  • Other types of epistasis include <em>recessive epistasis (9:3:4), dominant inhibitory epistasis (13:3), duplicate recessive epistasis (9:7), duplicate dominant epistasis (15:1), and polymeric gene interaction (9:6:1).</em>
5 0
3 years ago
What occurs at step 3 in the diagram?
Ivanshal [37]

Answer:

A

Explanation:

The restriction enzymes cut the isolated DNA into fragments

5 0
3 years ago
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Suppose you found a fossil of a clam shell what can you conclude about the once-living organism and how it became a fossil?
Stolb23 [73]

Answer:

Identifying the fossil is the first step. We have already identified this fossil as a clamshell. We know clam are from the sea, but if you didn't, you could conclude this from knowing where you found the fossil (likely near the beach). Discovering where it is can also lead you to a conclusion on it's arrival as a fossil, perhaps washed up on shore or buried by an animal.

Explanation:

8 0
3 years ago
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Which blood component makes up 41% of the blood’s volume?
Len [333]
Red Blood Cells would take up 41% of the blood's overall volume.
7 0
3 years ago
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Drag each label to the correct location on the image.
krok68 [10]

Answer in picture below:

Base on the given:

if the line goes down = decrease/bad

if the line goes up = increase/good

<u><em>~Lenvy~</em></u>

8 0
2 years ago
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