The phenotypic expression of a dominant gene in ayrshire cattle is a notch in the tips of the ears. in the pedigree below, where solid symbols represent notched individuals, determine the probability of notched progeny being produced from the mating: iii2 × iii3

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation

18. which statement about cancer is true?