PLEASE EXPLAIN IN DETAIL In a particular plant, there are four flower colors, ma

Question

PLEASE EXPLAIN IN DETAIL

In a particular plant, there are four flower colors, maroon, orange, gold and yellow. From crosses among various plants, some known to be true-breeding, and some unknown whether they are true-breeding, you obtain the following results:

true-breeding marron x true-breeding orange --> all maroon

true-breeding maroon x true-breeding yellow --> all maroon

unknown maroon x true-breeding orange --> 1/2 maroon, 1/2 orange

unkown gold x unknown gold --> 1/2 gold, 1/4 orange, 1/4 yellow

unknown maroon x unknown gold --> 1/2 maroon, 1/4 orange, 1/4 gold

No true-breeding gold lines are known

What are the best explanation of these results?

a) Three alleles of a single gene

b) Four alles of a single gene

c) Two genes producing four phenotypes

D) Epistasis between two genes

Explanation / Answer

D) Epistasis between two genes

Epistasis, is an interaction between alleles at the same gene locus. ie interaction at the phenotypic level, the phenotypic ratios might deviate from those expected phenotype.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.