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>
Answer:
A. oxygen and sugar are used in the process that provides energy to cells, water and carbon dioxide are given off.
Explanation:Respiration is a biochemical process that uses oxygen and glucose to generate energy with the release of carbondioxide and water. All organism respires and the oxygen is used for cellular respiration.
C6H1206 +6O2----6CO2+6H2O+Atp(energy)
The Co2 and H2O is used by plant for the process of photosynthesis in producing there food.
las plantas crean oxígeno que hace funcionar a todos los organismos vivos. que establece que si no creamos dióxido carbono, ellos sufrirán.
Nitrogen
idk i got it from google and i learned it in 7th grade