In D. melanogaster, cherub wings (ch), black body (b), and cinnabar eyes (cn) result from recessive alleles that are all located on chromosome 2. A homozygous wild-type fly was mated with a cherub, black, cinnabar fly, and the resulting F, females were test-crossed with cherub, black, cinnabar males. The following progeny were produced by the testcross: ch b* сп 105 ch* b* cn* 750 ch* 40 cn ch* b+ сп 4 ch cn 753 ch b+ cn* 41 ch* cn* 102 ch сп Total 1800

What process occurs when genes swap position on a chromosome during meiosis, as in the case of Cru du Cat syndrome?

In a turtle species, a diploid cell in the G1 phase of the cell cycle contains 22 picograms of DNA (picogram is a measure of the total mass of the DNA present). How much DNA is present in a cell of the same species at prophase II of meiosis (prophase of the second meiotic division)?

How many genes are there present on chromosome 11 ?