AP BIOLOGY

Detailed explanation-1: -Even though your body changes and you develop new physical and behavioral characteristics, your never changes. The correct answer was: d. genotype.

Detailed explanation-2: -In a broad sense, the term “genotype” refers to the genetic makeup of an organism; in other words, it describes an organism’s complete set of genes.

Detailed explanation-3: -Genes influence each individual’s behavioral and psychological characteristics, including intellectual ability, personality, and risk for mental illness-all of which have bearing on both parents and children within a family.

Detailed explanation-4: -The human genome is mostly the same in all people. But there are variations across the genome. This genetic variation accounts for about 0.001 percent of each person’s DNA and contributes to differences in appearance and health. People who are closely related have more similar DNA.

Detailed explanation-5: -One example of a gene–environment interaction involves the NAT2 gene, smoking as the environmental factor, and bladder cancer. Tobacco smoking is a known risk factor for bladder cancer. According to the American Cancer Society, smokers are at least three times as likely to get bladder cancer as non-smokers.