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

Question

Quizplus · Accepted Answer

Drugs and nutrition can alter gene expression by affecting the way the DNA sequence is read by the cellular machinery. This can lead to changes in the proteins that are produced, which can have significant effects on an individual's health and development. However, it is important to note that not all environmental factors can influence gene expression, and genetic factors also play a role in determining an individual's traits and characteristics.

Which of the Following Is True Concerning Environmental Influence on Genetic