GEOLOGY

Detailed explanation-1: -Natural selection acts on an organism’s phenotype, or observable features. Phenotype is often largely a product of genotype (the alleles, or gene versions, the organism carries).

Detailed explanation-2: -Natural selection acts on the phenotype (the traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype (the genetic makeup) of an individual. For many traits, the homozygous genotype, AA, for example, has the same phenotype as the heterozygous Aa genotype.

Detailed explanation-3: -The interactions between individuals and their environment is what determines whether their genetic information will be passed on or not. This is why natural selection acts on phenotypes instead of genotypes. A phenotype is an organism’s physical traits, while a genotype is an organism’s genetic makeup.

Detailed explanation-4: -Natural selection occurs when individuals with certain genotypes are more likely than individuals with other genotypes to survive and reproduce, and thus to pass on their alleles to the next generation.

Detailed explanation-5: -Which of the following explains why natural selection acts on the phenotype of an organism instead of its genotype? A Phenotypes directly influence the interaction of an organism with its environment.