Question

Part A
Multiple Select Question
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.

Answers

GPT-4o mini
The statements that best describe how humans select for wrinkly skin in Chinese Shar Peis are:

B. By mating a wrinkly female and wrinkly male so they have the best chance of passing on the gene for wrinkly skin.

This statement most accurately reflects the process of selective breeding, where breeders intentionally mate individuals with desirable traits—in this case, wrinkly skin—to increase the likelihood of producing offspring that also express that trait.

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 is incorrect because mating a non-wrinkly male with a very wrinkly female would not be an effective way to ensure the trait is passed on.

C. By inserting a gene for wrinkly skin into every Shar Pei puppy is incorrect because this implies genetic engineering rather than natural breeding methods.

D. By mutating the DNA of one Shar Pei, hoping they will pass on the mutated trait to their offspring is also incorrect, as selective breeding does not involve random mutations but rather the selection of existing traits within the population.

So the best answer is **B**.