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1. Head Jerk Rate Initially, under normal circumstances, the head jerk rate of fishes while looking for worms was very low. They jerked their heads only about 10 times per minute. As the time passed and they sensed no danger the rate increased to 20 times. This is clear evidence […]

In humans, let’s say that having a free earlobe is dominant to having an attached earlobe, and that hairline is an X-linked trait whereby a normal hairline is dominant over a widow’s peak hairline. Two parents with free earlobes and normal hairlines have a son who has an attached earlobe […]

Q1. 1. The FRP protein can function as either a positive regulator of transcription or as a negative regulator of transcription. FRP binds to its consensus sequence when fumarate is present. On the coding strand above, indicate where you would expect FRP to bind to the DNA. In one sentence, […]

The gene for sickle-cell anemia exhibits heterozygote advantage. An individual who is an HB-A/HB-s heterozygote has increased resistance to malaria and therefore has greater fitness than the HB-A/HB-A homozygote, who is susceptivle to malaria, and the HB_S/HB-S, who has sickle cell. A) Suppose that the fitness values of the genotypes […]