Eukaryotic and Prokaryotic Chromosomes
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Questions and Answers

Where are eukaryotic chromosomes found?

  • In the endoplasmic reticulum of eukaryotic cells
  • In the nucleoid region of prokaryotic cells
  • In the cytoplasm of eukaryotic cells
  • In the nucleus of eukaryotic cells (correct)
  • What is the structure of prokaryotic chromosomes?

  • Linear
  • Circular (correct)
  • Irregular
  • Multiple linear structures
  • How many chromosomes are typically found in a normal human karyotype?

  • 50 chromosomes (25 pairs)
  • 46 chromosomes (23 pairs) (correct)
  • 44 chromosomes (22 pairs)
  • 48 chromosomes (24 pairs)
  • What is the cause of Trisomy 21 (Down Syndrome)?

    <p>Extra chromosome 21 (47 chromosomes)</p> Signup and view all the answers

    During which phase of meiosis does crossing over occur?

    <p>Prophase I</p> Signup and view all the answers

    During which phase of meiosis do homologous chromosomes pair up and undergo crossing over?

    <p>Prophase I</p> Signup and view all the answers

    What is the primary function of homologous chromosomes?

    <p>Ensure genetic diversity in offspring</p> Signup and view all the answers

    Which term describes chromatids from different chromosomes or the same chromosome but different homologous pairs?

    <p>Non-sister chromatids</p> Signup and view all the answers

    What is the result of non-disjunction during meiosis?

    <p>Cells with abnormal chromosome numbers</p> Signup and view all the answers

    When do sister chromatids finally separate and move to opposite poles during meiosis?

    <p>Anaphase II</p> Signup and view all the answers

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