A Missense Mutation in Neurospora Will Revert by Treatment with Nitrous

question 6

Multiple Choice

A missense mutation in Neurospora will revert by treatment with nitrous acid,but not by hydroxylamine.Hydroxylamine (HA) causes only G·C → A·T transitions,while nitrous acid causes both G·C → A·T and A·T → G·C transitions.The original mutation (not the reversion) must have been:

• A)AT to CG.
• B)AT to GC.
• C)AT to TA.
• D)GC to AT.
• E)GC to TA.

---

Definitions:

Sexual Sadism

A condition where individuals derive pleasure from inflicting pain or humiliation on others.

Sexual Masochism

A condition where sexual excitement and satisfaction depend on enduring pain, humiliation, or being bound.

Consenting Adults

Refers to individuals who are of legal age and have the capacity to make decisions about participating in activities, particularly sexual or other significant undertakings, with mutual agreement and understanding.

Paraphilias

Atypical sexual interests towards objects, situations, or individuals that are not part of normative stimulation.