Multiple Choice
What is an example of a neutral mutation?
248
views
15. Gene Expression
Mutations
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What did researchers discover about the genetic mutation causing the loss of pelvic spines in certain fish populations?
A
The mutation is located in the coding region of the Pitx1 gene.
B
The mutation leads to an overexpression of the Pitx1 gene.
C
The mutation occurs in a regulatory region of the Pitx1 gene.
D
The mutation results in a complete deletion of the Pitx1 gene.
Verified step by step guidance1
Begin by understanding the role of the Pitx1 gene. The Pitx1 gene is known to be involved in the development of pelvic structures in vertebrates, including fish.
Recognize that genetic mutations can occur in different regions of a gene: the coding region, regulatory region, or can result in deletions. Each type of mutation can have different effects on gene expression and function.
Consider the impact of a mutation in the coding region. Such mutations typically alter the protein product directly, potentially affecting its function.
Evaluate the effect of a mutation in a regulatory region. Regulatory regions control when, where, and how much a gene is expressed. A mutation here can lead to changes in gene expression without altering the protein structure.
Understand that researchers discovered the mutation causing the loss of pelvic spines in certain fish populations occurs in a regulatory region of the Pitx1 gene. This affects the expression pattern of the gene, leading to the observed phenotypic change.
Related Videos
Related Practice
