1. cattle breeders routinely use cryo-preserved bull sperm to impregnate cows. a typical sample contains about 1 x 108 sperm and the size of the haploid cattle genome is 3.2 x 109 base pairs. if the chromosomal dna extracted from the sperm were arranged end-to-end, about how many football fields would it cover (1 football field = 100 yards, 1 meter = 1.1 yards)? one more fact is required to solve this problem and it can be found in the textbook or online.2. parvovirus causes a deadly intestinal disease in dogs. the canine virus likely evolved from a closely related virus that infects cats, and initiated a worldwide pandemic of susceptible dogs in 1978. parvovirus dna isolated from infectious viral particles contains 25% a, 33% t, 22% c, and 20% g residues. a. do these results seem peculiar? why or why not? b. how might you explain these values?