EVOLUTION
SOURCES OF VARIATION IN A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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I and II
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I and III
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II and III
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III and IV
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Detailed explanation-1: -Common health problems such as heart disease, type 2 diabetes, and obesity do not have a single genetic cause-they are influenced by multiple genes (polygenic) in combination with lifestyle and environmental factors, such as exercise, diet, or pollutant exposures.
Detailed explanation-2: -Examples of genetic conditions include: some cancers. cystic fibrosis. high cholesterol.
Detailed explanation-3: -Genes influence each individual’s behavioral and psychological characteristics, including intellectual ability, personality, and risk for mental illness-all of which have bearing on both parents and children within a family.
Detailed explanation-4: -It must be stable. It must be capable of being expressed when needed. It must be capable of accurate replication. It must be transmitted from parent to progeny without change.