A Geneticist Is Studying a Particular Drosophila Mutant That Produces

question 21

Multiple Choice

A geneticist is studying a particular Drosophila mutant that produces a phenotype of "no wing" due to a mutation in a gene called wingless.She takes the mutant wingless and mutagenizes it.She hypothesizes that any fly that emerges with wings will be due to the original mutated gene reverting back to the wild- type allele. From this study,she identifies a fly that now has wings.When she sequences the wingless gene,she discovers that the original mutation is still there,and there are no other mutations in the wingless gene.However,a second gene at a separate locus is mutated.The second mutation is best classified as an__________.

• A)null mutation
• B)intragenic suppressor mutation
• C)conditional mutation
• D)intergenic suppressor mutation
• E)haploinsufficiency mutation

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Definitions:

Bride's Family

The family of the bride, often involved in wedding traditions, customs, and potentially in providing a dowry or support for the wedding expenses.

Matrilateral Cross-cousin Marriage

A marital arrangement in which an individual marries a cousin from their mother's side, common in some societies as a strategy to maintain alliances.

Sexual Behavior

Activities related to physical intimacy and reproduction, varying widely across different species, including humans, and influenced by biological, psychological, and social factors.

Migrant Labor Force

A segment of the workforce that moves from one region or country to another to find employment, often characterized by temporary or seasonal work.