Q1. The enzyme that converts pyruvic acid into acetyl CoA requires B1, also called thiamine. Vitamin B1 has to be taken in through the diet of the individual. At what phase will cellular respiration halt without B1?
Q2. A wild-type fruit fly (heterozygous for gray body colour and normal wings) was mated with a black fly with vestigial wings. The offspring gave the following distribution: wild type, 778; black-vestigial, 785; black-normal, 158; gray-vestigial, 162. What are the phenotypes of the recombinants? What is the recombination frequency between genes for body colour and wing type?