Mutations of Regulatory Elements of Developmental Genes May Have Either

question 28

Multiple Choice

Mutations of regulatory elements of developmental genes may have either dominant or recessive effects. If a mutation deletes a silencer upstream of a HOX gene, which do you expect?

• A) a dominant trans effect on both alleles of the HOX gene
• B) a dominant effect in which cis HOX gene activity is up- regulated
• C) a dominant effect which down- regulates HOX gene activity
• D) a recessive effect in which cis HOX genes are down- regulated
• E) a recessive effect in which cis HOX genes are up- regulated

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Definitions:

Groupthink

A psychological phenomenon occurring within a group of people, in which the desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.

Flawed Decisions

Pertains to decisions that are made based on incorrect information, biases, or errors in judgment, leading to less than optimal outcomes.

Propinquity

Refers to the physical or psychological proximity between people.

Collectivist Society

A society that emphasizes communal goals, cooperation, and the welfare of the group over individual interests.