Exploring Genetic Variation
20 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which process creates genetic variation by arranging existing genes in new ways?

  • Gene duplication
  • Sexual reproduction (correct)
  • Noncoding DNA mutations
  • Mutation
  • What can result from mutations in noncoding regions of DNA?

  • New alleles
  • Reproductive success
  • Selective advantage
  • Neutral variation (correct)
  • How can new alleles arise?

  • Selective advantage
  • Gene duplication
  • Mutation (correct)
  • Reproductive success
  • What is the main source of genetic variation?

    <p>Mutation</p> Signup and view all the answers

    What can improve an organism's reproductive success in a particular environment?

    <p>Mutation</p> Signup and view all the answers

    What type of variation do mutations in noncoding regions of DNA often result in?

    <p>Neutral variation</p> Signup and view all the answers

    What are the processes that can produce new alleles and genes?

    <p>Mutation</p> Signup and view all the answers

    What is the result of sexual reproduction in terms of genetic variation?

    <p>Arranging existing genes in new ways</p> Signup and view all the answers

    What can create new alleles by arranging existing genes in new ways?

    <p>Sexual reproduction</p> Signup and view all the answers

    What is the role of gene duplication in creating genetic variation?

    <p>Arranging existing genes in new ways</p> Signup and view all the answers

    Which type of mutation is typically harmful and involves deleting, disrupting, duplicating, or rearranging many loci?

    <p>Chromosomal mutation</p> Signup and view all the answers

    What is the consequence of duplicating small chromosome segments?

    <p>It can persist for many generations</p> Signup and view all the answers

    What can duplicated genes that are not harmful do over time?

    <p>They can accumulate mutations and take on new functions</p> Signup and view all the answers

    What role do gene duplications likely play in evolution?

    <p>Major role</p> Signup and view all the answers

    What is the average mutation rate in animals and plants?

    <p>One in every 100,000 genes per generation</p> Signup and view all the answers

    Why are mutation rates slower in prokaryotes compared to animals and plants?

    <p>Prokaryotes have longer generation times</p> Signup and view all the answers

    What is the reason for faster mutation rates in viruses?

    <p>Viruses have shorter generation times</p> Signup and view all the answers

    How does sexual reproduction contribute to genetic variation?

    <p>Through meiosis</p> Signup and view all the answers

    Which mechanism of sexual reproduction shuffles existing alleles into new combinations?

    <p>Crossing over</p> Signup and view all the answers

    What is the consequence of random fertilization in sexual reproduction?

    <p>It increases genetic variation</p> Signup and view all the answers

    More Like This

    Exploring Genetic Variation
    5 questions

    Exploring Genetic Variation

    BreathtakingEpiphany1740 avatar
    BreathtakingEpiphany1740
    Exploring Genetic Variation
    5 questions
    Exploring Genetic Variation
    10 questions
    Use Quizgecko on...
    Browser
    Browser