Q1. Each allele of single gene in a diploid cell during the G1 phase is present as part of a single (double-stranded) molecule. The Drosophila genome is approximately 150 Mb. which means that single haploid genome (one allele of each gene) would be 150,000,000 base pairs. Recalling that Avogadro’s number is 6 x 10^23 (no units; this is a “pure” number), how several diploid Drosophila cells would be needed to have 1 picomole of each allele?

Q2. In peaches, Fuzzy skin (F) is completely dominant to smooth (nectarine) skin (F), and hetrozygous condition of oval galnds at the base of leaves (G ^o) and no glands (G^N) gives round glands. A homozygous fuzzy,no-gland peach variety is bred to a smooth, oval-gland variety.

a) What will be appearance of the F1 peaches?

b) What will be appearance of the F2 peaches?

C) What will be appearance of the offspring of a cross of the F1 peaches back to that smooth,oval glanded parent?