Question

If you self cross purple flower in sweet pea, you will get__________

(a) Purple flower in every occasion

(b) White flower in every occasion

(c) May be white or purple flower

(d) A blend of white and purple flower

This question was addressed to me during an interview.

The above asked question is from Duplicate Epistasis in division Extension and Deviation from Mendelian Genetic Principles of Cytogenetics

Answer 1

Right answer is (c) May be white or purple flower

Best explanation: If the purple flower is homozygous in both loci then we will get only purple flowers, but heterozygosity in both loci would give a 9:7 ratio of purple to white flower in the F1.