Many people have big toes that are shorter than their second toes. The short big toe allele (S) is dominant to the long big toe allele (s) The Punnett square shows a cross between an Ss parent and an ss parent.
What is the probability that their child will have short big toes?
O A. 0/4
O
B. 1/4
C 214
OD. 3/4
O E 4/4

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

2polnis which of the following is an advantage of an in vitro experiment?me

Each member of a class sampled a piece of ptc testing paper. thirty people sampled the chemical. twenty persons were tasters. how many had heterozygous genes? 10 20 0-20 indeterminate