Which of the Following Is True Concerning Environmental Influence on Genetic

question 19

Multiple Choice

Which of the following is true concerning environmental influence on genetic expression?

• A) Drugs and nutrition can alter normal gene expression.
• B) The only time a gene can be influenced by environmental factors is in the second trimester of pregnancy.
• C) Environmental factors determine the way in which 90 percent of our genes are expressed.
• D) It is impossible to alter in any way the expression of a gene in humans.

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Definitions:

Hierarchical Group Play

A form of social play among animals or humans that is structured according to a ranking system or social hierarchy within the group.

Competitive Group

A collection of individuals or entities that strive against each other to achieve a common goal, often leading to improved performance but also potential conflict.

Indifferent Reproductive Structures

Refers to reproductive organs or features that do not distinctly belong to either traditionally defined male or female categories in organisms.

Male External Genitalia

The external structures of the male reproductive system, including the penis, scrotum, and testes, involved in sexual function and reproduction.