Which of the following is an advantage of cloning?

a) cloned animals are larger than the parent animal
b) cloned animals have greater genetic diversity than the parent animals
c) cloning allows scientists to study how organisms grow
d) cloning produces more desirable traits in offspring

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

The lineage of pea plants produced round seeds for four generations. the plants that fertilized these pea plants also produced round seeds. however, in the fifth generation, the plant produced to two plants with wrinkled seeds. can that be possible?