Ch 9 Cell Reproduction Questions 2

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Ch 9 Cell Reproduction Questions 2 - Quiz


Reproduction in living things is made possible by cell reproduction when the cells break apart to form an embryo. In chapter 9 we got to cover cell reproduction and all it entails. The quiz below is the second in a series and is perfect for measuring how well you understand the process through which cells break apart to form new cells. Give it a try and see if you need more reading hours.


Questions and Answers
  • 1. 

    Meitotic cell division produces _________ haploid daughter cells from each diploid parental cell.

    • A.

      Four

    • B.

      Meiosis I

    • C.

      Gametes or sperm eggs

    • D.

      None of the above

    Correct Answer
    A. Four
    Explanation
    Meiotic cell division, specifically meiosis I, produces four haploid daughter cells from each diploid parental cell. This process involves two rounds of cell division, resulting in the formation of gametes or reproductive cells such as sperm and eggs. These daughter cells contain half the number of chromosomes compared to the parental cell, allowing for genetic diversity during sexual reproduction.

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  • 2. 

    The first haploid nuclei are produced at the end of _____________ in animals.

    • A.

      Four

    • B.

      Meiosis I

    • C.

      Gametes or sperm eggs

    • D.

      None of the above

    Correct Answer
    B. Meiosis I
    Explanation
    At the end of meiosis I in animals, the first haploid nuclei are produced. Meiosis I is the first division of meiosis, where the homologous chromosomes separate, resulting in two daughter cells with half the number of chromosomes as the parent cell. These daughter cells are haploid, meaning they have only one set of chromosomes. Therefore, meiosis I is the correct answer as it accurately describes the process in which the first haploid nuclei are formed in animals.

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  • 3. 

    The haploid daughter cells produced by meiotic cell division are called

    • A.

      Four

    • B.

      Meiosis I

    • C.

      Gametes or sperm eggs

    • D.

      None of the above

    Correct Answer
    C. Gametes or sperm eggs
    Explanation
    The correct answer is gametes or sperm eggs. Meiotic cell division is a type of cell division that occurs in reproductive cells to produce gametes. Gametes are haploid cells, meaning they contain half the number of chromosomes as the parent cell. In males, the haploid gametes are called sperm, while in females, they are called eggs. Therefore, the correct answer is gametes or sperm eggs.

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  • 4. 

    During ________ of meiosis I, homologous chromosomes intertwine, forming structures called __________

    • A.

      Prophase, crossing over

    • B.

      Chiasmata, crossing over

    • C.

      Prophase, chiasmata

    • D.

      Gametes

    Correct Answer
    C. Prophase, chiasmata
    Explanation
    During prophase of meiosis I, homologous chromosomes intertwine, forming structures called chiasmata. This is the stage where crossing over occurs, which is the exchange of genetic material between homologous chromosomes. This process is important for genetic variation and the creation of genetically unique gametes.

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  • 5. 

    Chiasmata structures are the sites of what event?

    • A.

      Prophase

    • B.

      Chiasmata

    • C.

      Prophase and chiasmata

    • D.

      Crossing over

    Correct Answer
    D. Crossing over
    Explanation
    Chiasmata structures are the sites where crossing over occurs during meiosis. Crossing over is the exchange of genetic material between homologous chromosomes, which leads to genetic recombination and variation in offspring. This process occurs during prophase I of meiosis. Therefore, the correct answer is "crossing over."

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  • 6. 

    The processes that promote genetic variability of offspring during sexual reproduction are _________, ________ and _________.

    • A.

      Meiosis I, shuffling of homologues, fusion of gametes

    • B.

      Meiosis II, fusions of gametes, chiasmata

    • C.

      Shuffling of homologues, crossing over, fusion of gametes

    • D.

      Mitosis 1, homologues, meiosis 2, crossing over

    Correct Answer
    C. Shuffling of homologues, crossing over, fusion of gametes
    Explanation
    The processes that promote genetic variability of offspring during sexual reproduction are shuffling of homologues, crossing over, and fusion of gametes. Shuffling of homologues occurs during meiosis I, where homologous chromosomes exchange genetic material. Crossing over also occurs during meiosis I, where sections of homologous chromosomes are exchanged, further increasing genetic diversity. Finally, fusion of gametes occurs during fertilization, combining the genetic material from two different individuals to create a unique combination of genes in the offspring.

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