Genetics and Molecular Biology Quiz
10 Questions
1 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

What determines short wings in fruit flies?

  • The phenotype
  • Affected by its environment
  • The genotype (correct)
  • Determined by the genotype

    • In a nucleosome, what is the DNA wrapped around?

  • Polymerase molecules
  • mRNA
  • Ribosomes
  • Histones (correct)

    • Which statement is true about the hierarchical arrangement of DNA?

  • The 30 nm chromatin fiber is thicker than the nucleosome (correct)
  • The chromatin loops are smaller than the 30 nm chromatin fiber
  • The 30 nm chromatin fiber looks like “beads-on-a-string”
  • Chromosomes are wrapped around sister chromatids

    • During mitosis, metaphase has what amount of genetic material compared to G1?

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

    When do sister chromatids begin to move apart in animal cells?

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

    What does an allele represent?

    <p>A variant of a gene</p> Signup and view all the answers

    Which sentence correctly describes Mendel’s Laws of Heredity?

    <p>They are the segregation of genes and the independent assortment of alleles.</p> Signup and view all the answers

    In a testcross for the pea plant, if 45 out of 92 F1 pods were yellow, what was the green parent’s genotype?

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

    In peas, if half of the F1 plants produced flowers at the top in a testcross, what was the axial parent’s genotype?

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

    A 9:3:3:1 phenotypic ratio is characteristic of:

    <p>Two genes with one allele each</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser