Darwin Thought That All Natural Selection Was Negative

question 24

Multiple Choice

Darwin thought that all natural selection was negative.However,we have since learned that positive selection is a powerful force,and it

• A) creates new gene variants that enhance the phenotype.
• B) retains gene variants or combinations that promote successful reproduction.
• C) enables people to resist infectious diseases.
• D) enables us to alter our genotypes.
• E) removes gene variants that are harmful.

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Definitions:

Personal Behavior

Actions or reactions of an individual, often in response to external stimuli or internal thoughts and emotions.

External Environment

All outside factors and influences that affect an organization's or individual's performance, health, or survival.

Laboratory Studies

Laboratory studies involve the analysis of samples (like blood or urine) in a controlled setting to diagnose diseases, understand health conditions, or perform research.

Objective Data

Information in healthcare that is measurable and observable by healthcare providers, differing from subjective data provided by the patient's personal experience of symptoms.