Answer:
Binding the rna polymerase to the promoter sequence
Geographic isolation can lead to certain traits becoming more common and can cause certain disabilities to be passed along to the rest of the population at an increased rate. Basically it can cause some traits to become over represented.
Answer:
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A phenotype is a physical characteristic which is visible. Hence when the resulting combinations have two dominant alleles or even one dominant allele, the dominant characteristic is exhibited. The recessive characteristic is exhibited only when both the alleles are recessive.
To find the ratio of phenotypes, we need to place the genotype of the father and mother in a grid form ( attached grid figure)
Here we have two Ff phenotypes which is dominant and two ff phenotypes which is recessive
Hence the ratio is 2:2 or 1:1
Survival of the fittest is the test of adaption which in turn aides in the process of evolution