Tay- Sachs Is Inherited as an Autosomal Recessive Allele

question 5

Multiple Choice

Tay- Sachs is inherited as an autosomal recessive allele.Homozygous individuals die within the first few years of life.However,there is some evidence that heterozygous individuals are more resistant to tuberculosis.Which of the following statements about Tay- Sachs is true?

• A)This situation is an example of disruptive selection.
• B)The allele for Tay- Sachs is selected against.
• C)This situation is an example of heterozygote advantage if tuberculosis is present in a population.
• D)Heterozygotes will be more fit than either homozygote regardless of environmental conditions.

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Definitions:

Cultivation Phase

A stage in relationships or projects where growth and development are emphasized and nurtured.

Psychosocial Support

Assistance provided to individuals or communities to help them cope with psychological and social challenges.

Psychosocial Functions

The roles that relationships and social networks play in shaping a person's psychological development and functioning.

Role Modeling

The process by which individuals pattern their behavior on the behavior of others whom they admire or wish to emulate.