Question

The rules of heredity determine the process by

• A. behavioural trends
• B. traits and characteristics
• C. size of population
• D. environmental condition

Answer 1

The correct option is B

traits and characteristics

The correct option is B.

Explanation of the correct option :

1. The set of rules that determine the process by which traits and characteristics are reliably inherited is known as heredity.
2. Heredity is also explained as the 'tendency of the offspring to exhibit certain characters of parents or ancestors'.

Explanation of the incorrect option:

Option A:

A trait behavior that is wholly due to genetics has 100 percent heritability.

Option C:

Small populations tend to lose genetic diversity more quickly than large populations due to genetic drift.

Option D:

1. Drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off.
2. So they influence the way an organism develops and functions.

Final answer: The rules of heredity determine the process by traits and characteristics.