In a prokaryote, a group of genes with related functions, along with their associated control sequences, are called a(n)
Group of answer choices
promoter.
repressor.
allele.
The correct answer is "operon".
In order to arrive at this answer, you can break down the question and analyze the given options.
First, we need to determine what "a group of genes with related functions, along with their associated control sequences" is referred to in prokaryotes. This group of genes consists of multiple genes working together to carry out a specific function or pathway, and their expression is controlled by a common set of regulatory elements.
Next, let's examine the options:
1. Promoter: A promoter is a specific region of DNA where RNA polymerase binds to initiate the transcription of a gene. While important, it refers to a specific sequence, not a group of genes with related functions.
2. Repressor: A repressor is a protein that inhibits gene expression by binding to the operator region of DNA, preventing RNA polymerase from transcribing the associated genes. Again, it is not the term for a group of genes with related functions.
3. Allele: An allele refers to different versions of a gene that occupy the same position in chromosomes. It describes genetic variations and is not applicable to the given question.
Based on this analysis, only the term "operon" matches the description provided. An operon consists of a cluster of genes, often with related functions, along with the control sequences involved in their regulation.