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6 questions
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  • Q1
    Which diagram demonstrates how crossing-over contributes to genetic variety during meiosis?
    Answer Image
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    30s
    B.6.G: Meiosis
  • Q2
    During meiosis, homologous chromosomes exchange genetic material. This exchange of genetic material —
    increases the genetic variation
    reduces the diploid number to the haploid number
    reduces the probability of mutations
    increases the haploid number to the diploid number
    30s
    B.6.G: Meiosis
  • Q3
    Human body cells each have 46 chromosomes in their nuclei. Meiosis is necessary in order to ensure that each gamete produced in the human body has —
    46 chromosomes
    92 chromosomes
    12 chromosomes
    23 chromosomes
    30s
    B.6.G: Meiosis
  • Q4
    Sexual reproduction in animals depends on the production of gametes. Which of these processes produces gametes in animals?
    Meiosis
    Binary fission
    Mitosis
    Fertilization
    30s
    B.6.G: Meiosis
  • Q5
    Crossing-over between nonsister chromatids during meiosis is significant in heredity. This process most likely leads to an increase in which of the following?
    Number of gametes
    The expression of dominant traits
    The occurrence of polyploidy
    Genetic variation
    30s
    B.6.G: Meiosis
  • Q6
    In the early 1900s, Thomas Hunt Morgan was among the first scientists to contribute to the chromosome theory of heredity. Morgan's investigations into heredity in fruit flies led him to propose that the event represented in the diagram sometimes occurs. Which statement about the event represented in the diagram is valid?
    Question Image
    The event represents RNA translation in the smooth endoplasmic reticulum.
    The event produces genetically identical daughter cells.
    The event takes place in bacterial cells.
    The event provides genetic diversity in eukaryotic cells.
    60s
    B.6.G: Meiosis

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