Which of the following best describes the relationship between genes and traits?
A) Physical traits are usually determined by a single gene pair, whereas psychological traits are usually determined by multiple genes.
B) Psychological traits are usually determined by a single gene pair, whereas physical traits are usually determined by multiple genes.
C) Both physical and psychological traits are usually determined by multiple genes.
D) Both physical and psychological traits are usually determined by a single gene.

Question

Quizplus · Accepted Answer

Both physical and psychological traits are usually determined by multiple genes. While some traits may be influenced by a single gene pair, most traits are complex and involve many different genes interacting with each other and with environmental factors. Therefore, it is more accurate to say that traits are generally determined by multiple genes rather than a single gene.

Which of the Following Best Describes the Relationship Between Genes