Cell Division - Mitosis: Overview, DNA Replication, and Regulation
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Questions and Answers

When a cell is preparing to divide, what happens to the chromatin?

  • The chromatin remains in a loose, thin fiber state
  • The chromatin is dissolved and lost
  • The chromatin becomes more condensed and visible as chromosomes (correct)
  • The chromatin is randomly packaged into the cell

    • What is the total number of chromosomes in a human somatic (body) cell?

  • 23
  • 115
  • 46 (correct)
  • 92

    • What are homologous chromosomes?

  • Chromosomes that are identical in structure and function
  • Chromosomes that come in pairs
  • Chromosomes that are inherited from both parents
  • All of the above (correct)

    • What is the difference between a haploid and a diploid cell?

    <p>Haploid cells have one complete set of chromosomes, diploid have two</p> Signup and view all the answers

    What is a karyotype?

    <p>A profile of a person's chromosomes arranged by size and number</p> Signup and view all the answers

    How many pairs of autosomal chromosomes do humans have?

    <p>22 pairs</p> Signup and view all the answers

    What are the two forms of chromatin found in cells?

    <p>Euchromatin and Heterochromatin</p> Signup and view all the answers

    During prophase, chromatin condenses into which form?

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

    Which type of cells have a relatively easy time sorting daughter chromosomes during cell division?

    <p>Prokaryotic cells with only 1 chromosome</p> Signup and view all the answers

    What is the goal of cell division in eukaryotes?

    <p>To partition identical copies of genetic material between two daughter cells</p> Signup and view all the answers

    Which term describes the distribution of one identical copy of each chromosome to developing daughter cells in eukaryotes?

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

    In binary fission, what happens to the circular chromosomes produced by prokaryotes?

    <p>They move to opposite ends of the cell and form two cells</p> Signup and view all the answers

    How many chromatids are there in a duplicated chromosome during the S-phase of interphase?

    <p>2</p> Signup and view all the answers

    What is the total number of chromatids in a diploid cell with 46 chromosomes after DNA replication?

    <p>92</p> Signup and view all the answers

    How many pairs of sister chromatids are present in a diploid cell with 46 chromosomes?

    <p>92</p> Signup and view all the answers

    What is the haploid number of chromosomes in a cell that has a diploid number of 46 chromosomes?

    <p>23</p> Signup and view all the answers

    How many different chromosomes would be observed in a karyotype of a diploid individual with 46 chromosomes?

    <p>23</p> Signup and view all the answers

    Which term describes the complex of DNA and proteins in the cell nucleus?

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

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