Which statement best describes how humans select for wrinkly skin in Chinese Shar Peis?
A.
By mating a very wrinkly female and non-wrinkly male so they have the best chance of passing on the gene for wrinkly skin.
B.
By mating a wrinkly female and wrinkly male so they have the best chance of passing on the gene for wrinkly skin.
C.
By inserting a gene for wrinkly skin into every Shar Pei puppy.
D.
By mutating the DNA of one Shar Pei, hoping they will pass on the mutated trait to their offspring.
Part B
Multiple Select Question
Chinese Shar Peis are selectively bred for their recessive trait, the wrinkly coat. The genotypic relationship of (rr) represents pure recessive genes. What would the alleles of the parents need to be in order to pass those traits to at least 25% of the offspring? Select three that apply:
A.
RR, RR
B.
Rr, Rr
C.
RR, rr
D.
Rr, rr
E.
rr, rr
B. Rr, Rr
D. Rr, rr
E. rr, rr