Genetic drift happens by chance and can make an allele disappear completely from a gene pool, even if it was a desirable trait that should have been passed down to offspring. The random sampling style of genetic drift shrinks the gene pool and therefore alters the frequency the alleles are found in the population.
A. Abrasion
Reason - cause by scraps on rough surface which breaks skin on outer layer.
Answer:
the microbe Rickettsia prowazekii.
Explanation:
Answer:
passing of traits
Explanation:
Inheritance is the act of passing traits through sexual or asexual reproduction.
Proteins are made up of a chain of 20 amino acids
