20 Questions
Which process creates genetic variation by arranging existing genes in new ways?
Sexual reproduction
What can result from mutations in noncoding regions of DNA?
Neutral variation
How can new alleles arise?
Mutation
What is the main source of genetic variation?
Mutation
What can improve an organism's reproductive success in a particular environment?
Mutation
What type of variation do mutations in noncoding regions of DNA often result in?
Neutral variation
What are the processes that can produce new alleles and genes?
Mutation
What is the result of sexual reproduction in terms of genetic variation?
Arranging existing genes in new ways
What can create new alleles by arranging existing genes in new ways?
Sexual reproduction
What is the role of gene duplication in creating genetic variation?
Arranging existing genes in new ways
Which type of mutation is typically harmful and involves deleting, disrupting, duplicating, or rearranging many loci?
Chromosomal mutation
What is the consequence of duplicating small chromosome segments?
It can persist for many generations
What can duplicated genes that are not harmful do over time?
They can accumulate mutations and take on new functions
What role do gene duplications likely play in evolution?
Major role
What is the average mutation rate in animals and plants?
One in every 100,000 genes per generation
Why are mutation rates slower in prokaryotes compared to animals and plants?
Prokaryotes have longer generation times
What is the reason for faster mutation rates in viruses?
Viruses have shorter generation times
How does sexual reproduction contribute to genetic variation?
Through meiosis
Which mechanism of sexual reproduction shuffles existing alleles into new combinations?
Crossing over
What is the consequence of random fertilization in sexual reproduction?
It increases genetic variation
Test your knowledge on the sources of genetic variation with this quiz. Explore how mutation, gene duplication, and other processes contribute to the creation of new alleles and genes. Understand how sexual reproduction plays a role in rearranging existing genes to generate genetic diversity.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
