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
The carbon cycle is the biogeochemical cycle by which carbon is exchanged among five spheres of the Earth, carbon (C) sinks: the biosphere, pedosphere, lithosphere, hydrosphere, and atmosphere (These are not mutually exclusive, see Glossary).
Answer:
A parasitic relationship is one in which one organism, the parasite, live off of another organism, the host, harming it.
Answer:
Periodic selection.
Explanation:
Some bacterial strain has the ability to develop the resistance against the particular drug. This helps the bacteria to survive against the adverse environmental conditions.
The periodic selection may be defined as the natural selection that selects some strains of the bacteria that can survive in the particular environment. The periodic selection also favors the adaptive mutation that might occur due to the recombination in bacteria and removes the non selective species. The information given in the question provides the example of periodic selection.
Thus, the answer is periodic selection.
