Regarding prokaryotic genetics, which statement is correct?
A) Crossing over during prophase I introduces some genetic variation.
B) Prokaryotes feature the union of haploid gametes, as do eukaryotes.
C) Prokaryotes exchange some of their genes by conjugation, the union of haploid gametes, and transduction.
D) Mutation is a primary source of variation in prokaryote populations.
E) Prokaryotes skip sexual life cycles because their life cycle is too short.

Question

Quizplus · Accepted Answer

Mutation is the primary source of variation in prokaryote populations. Prokaryotes do not undergo sexual reproduction, so they do not have the opportunity to undergo meiosis and recombination via crossing over or the union of haploid gametes. However, prokaryotes do have high mutation rates due to their rapid growth and short generation times, which can introduce genetic variation into their populations. Conjugation, transduction, and transformation are mechanisms of horizontal gene transfer in prokaryotes, but they do not involve the union of haploid gametes.

Regarding Prokaryotic Genetics, Which Statement Is Correct