Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction. For example, if a population is exposed to a new disease, selection will act on genes for resistance to the disease if they exist in the population.
Answer:
One.
Explanation:
SDS (sodium dodecyl sulfate) PAGE ( Polyacrylamide gel electrophoresis) is the technique of the separation of the molecules on the basis of their molecular weight.
The beta-mercaptoethanol reduces and break the disulfide bonds present in the protein. When the protein X with the beta-mercaptoethanol is allowed to run on the gel, only one band will visible all the subunits have equal weight and will present at the same location on the gel.
Thus, the answer is one.
The answer is heterozygous. It means that she has two different alleles for one specific gene. And homozygous means that it has two same alleles for one specific gene. Heterogenous/homogenous means the different or same between organisms.
Answer:
D
Explanation:
Cells are living things therefore, nonlivng objects do not have cells
