To Say That the Heritability of a Trait Is Approximately

question 38

Multiple Choice

To say that the heritability of a trait is approximately 50 percent means

• A)that genes are responsible for 50 percent of the trait in an individual,and the environment is responsible for the rest.
• B)that the trait's appearance in a person will reflect approximately equal genetic contributions from both parents.
• C)that of the variation in the trait within a group of people,50 percent can be attributed to heredity.
• D)all of these things.

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Definitions:

Ectoparasitic Infection

An infection or infestation caused by parasites that live on the outer surface of the host's body, such as fleas, lice, or ticks.

Pediculosis Pubis

An infestation of the pubic hair and skin with pubic lice, leading to itching and redness.

Protozoan Infection

An infection caused by protozoa, which are single-celled microscopic organisms.

Trichomoniasis

Trichomoniasis is a sexually transmitted infection caused by the parasite Trichomonas vaginalis, presenting symptoms such as itching, burning, and discharge in women, but often asymptomatic in men.