An Allele of RNA Polymerase in Drosophila Demonstrates a Recessive

question 47

Multiple Choice

An allele of RNA polymerase in Drosophila demonstrates a recessive lethal inheritance pattern.Which of the following is true?

• A)Two homozygous recessive parents will have 100% homozygous offspring.
• B)The threshold effect is not seen in recessive lethality.
• C)Two heterozygotes will have offspring with a 2:1 pattern.
• D)Homozygous lethal genes will always demonstrate a gain of function pattern.
• E)Homozygous recessive offspring will never be seen.

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Definitions:

Acquiring Knowledge

The process of absorbing, understanding, and retaining new information through various methods such as observation, studies, and experiences.

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Painful Menstruation

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Reflective Thinking

Type of logical thinking that becomes more prominent in adulthood, involving continuous, active evaluation of information and beliefs in the light of evidence and implications.