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>
An explanation of how the natural world works.
Are you referring to this question?
All BUT one descriptive phrase applies to the illustration
of water. That is
A) water is a polar molecule.
B) the empirical formula of water is HO.
C) the shape of a water molecule is bent.
D) the molecular formula of water is H2O.
If you are, then the answer would be letter b. the empirical formula of water is HO.<span> </span>
<span>>Water Molecular Formula</span><span>: H</span><span>2</span><span>O</span>
<span>>Water </span>Empirical Formula: H2O
The correct answer is
Stasis
Population becomes isolated
After rapid change in isolated population
Reintroduction
