Question

7 true or false 2 points

the majority of human traits are influenced by a single gene

true
false

Explanation:

Analyze the statement

The statement claims that the majority of human traits are influenced by a single gene.

Evaluate genetic complexity

Most human physical and physiological characteristics, such as height, skin color, and eye color, do not follow simple Mendelian inheritance. Instead, they are polygenic, meaning they are controlled by multiple genes acting together.

Connect to phenotype expression

While some simple traits relate directly to a single gene, as studied in Genotype and Phenotype, the vast majority of human phenotypes result from complex interactions among many genes and environmental factors. Therefore, the statement is false.

Answer:

• True
• False (Correct answer)