Question

Typical ratios resulting from epistatic interactions in dihybrid crosses would be

Answer 1

9:3:4, 9:7

Explanation:

Ratios of epistatic interactions in dihybrid crosses would be 9:3:4, 9:7.

Epistatis is a type of gene interaction in which one gene masks the effect of other gene in heterologous condition.

Epistasis may be dominant or recessive.

9:3:4 is the recessive epistasis ratio where recessive condition of a gene masks the expression of another dominant gene.

In case of the double recessive epistasis, the resulting ratio would be 9:7

Answer 2

Dihybrid crosses

Step-by-step explanation:

Typical ratios resulting from epistatic interactions in dihybrid crosses would be 9:3:4, 9:7

• Epistatis is a type of gene interaction in which one gene masks the effect of other gene affecting the same trait but alleleically different
• 9:3:4 is the recessive epistasis or single gene recessive epistasis ratio where recessive condition of a gene masks the expression of another dominant gene
• 9:7 is the double recessive epistasis or complementary gene action ratio where two independently assorting non allelic genes interact with each other in such a manner that recessive condition of any of the gene mask the expression of other
• Complementation is very important in regulation of metabolic pathways as in metabolic pathways all the enzymes are dependent on each other