The Diagram Below Shows a Simplified Version of the Biochemical

Multiple Choice

The diagram below shows a simplified version of the biochemical pathway responsible for fruit color in peppers.Assume that Enzyme 1 is encoded by gene A (a is a null allele) ,Enzyme 2 is encoded by gene B (b is a null allele) ,and Enzyme 3,which breaks down the chlorophyll present in the fruit,is encoded by gene C (c is a null allele) .In the absence of Enzyme 3,the fruit takes a brown color in the presence of red pigment,but it remains green in the absence of red pigment.


Absence of chlorophyll

a) Consider two genotypically different pure lines that make colorless peppers.If these two plants are crossed,what phenotypes should be observed in the F₁?

A) colorless only
B) colorless and yellow only
C) red and yellow only
D) red only
E) yellow only