Answer:
the sample of 200 medium ground finches measured in 1976 (Figure 1). The number of individuals has increased to close to the number of birds present in the population before the drought. However, the most common beak depth has increased from 8.8 mm to 9.8 mm .
It depends... what are genotypes of parental individuals?
the mutation occurred in the gametes
hope this helps :)
Answer:
Genetic drift
Explanation:
Sometimes, there can be random fluctuations in the numbers of alleles in a population. These changes in relative allele frequency, called genetic drift, can either increase or decrease by chance over time.