J because the desert rarely gets water so it needs to hold it better
Answer:
PP x PP; PP x Pp; PP x pp
Explanation:
Since the allele for purple flowers, P, is dominant, in order to be possible for all the offspring to have purple flowers, at least one of the parents must have the homozygous dominant genotype PP.
If one of the parents has a homozygous dominant genotype, all of the offspring will have purple flowers regardless of the other parent's genotype since one allele P will be passed down. Therefore, all of the possible genotype combinations are:
PP x PP; PP x Pp; PP x pp
Natural selection is a mechanism by which populations adapt and evolve.
A white rose cannot be produced in the G1 (first generation) of roses because the red rose will have a RR (R standing for red) allele combination. The pink rose will have a RW (R for red, W for white) <span>allele combination. When crossed all combinations will have at least one R allele, meaning that no roses (in the first generation) will have a WW allele combination. WW is the only allele combination that produces white roses.
(look up punnet squares for more help) </span>
