Assume That a Mutation Occurs in the Gene Responsible for the Production

question 39

Multiple Choice

Assume that a mutation occurs in the gene responsible for the production of hexosaminidase A,such that only about 50% of the enzyme activity is found in the heterozygote compared with a homozygous normal individual.If heterozygotes are phenotypically normal,we would say that the mutant allele is ________to its normal allele.

• A)gain of function
• B)epistatic
• C)recessive
• D)auxotrophic
• E)dominant

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Definitions:

Gullible

A tendency to be easily deceived or tricked, often due to a lack of skepticism or the desire to believe what one is told.

Preconscious

Mental activities and information not currently in conscious awareness but that can be easily recalled or accessed.

Collective Unconscious

A concept in psychology introduced by Carl Jung, referring to the part of the unconscious mind which is derived from ancestral memory and experience and is common to all humankind.

Material

The substance or substances out of which a thing is or can be made.