Of the following,which is the most accurate example of coaction?

A) Genes that are related to a specific disorder may be expressed phenotypically only in a certain kind of environment.
B) Genes for a disorder that are on the X-chromosome will only be expressed in females.
C) The environment and the genes have an equal influence on a disorder.
D) Genes will have a greater influence on the development of a disorder when the genes are dominant.

Question

Emily Arruda · Accepted Answer

Final Answer : A, Explanation :  Coaction refers to the concept that the expression of a gene is influenced by other genes or environmental factors. In option A, the expression of genes related to a disorder is influenced by a specific environment, demonstrating coaction between genes and the environment. Options B and D do not involve coaction, as they solely refer to genetic inheritance patterns. Option C suggests an equal influence of genes and environment, which may not always be accurate in explaining the development of a disorder.

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