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Meiosis

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  • Meiosis is _________________ reproduction
    Sexual
  • The sites of chromosome crossing over is called:
    Chiasmata
  • A fertilized egg is defined as a:
    Zygote
  • N = ?
    23
  • The growth process of the male gamete is known as:
    Spermatogenesis
  • At the end of one round of oogenesis, how many eggs are produced?
    1 - 3 polar bodies die off
  • Having two complete sets of chromosomes, one from each parent, is known as
    Diploid
  • True/False: Homologous pairs carry genes controlling different inherited traits
    False, homologous pairs carry genes controlling the SAME inherited traits
  • Having a single set of unpaired chromosomes (23) is defined as:
    Haploid
  • What are two of the main differences between mitosis and meiosis?
    Mitosis produces genetically identical cells - Meiosis results in genetic variation. Mitosis is asexual reproduction - Meiosis is sexual reproduction
  • Sperm have _____ chromosomes
    23
  • Humans have ______ pairs of chromosomes
    23
  • At the end of one round of spermatogenesis, how many sperm are produced?
    4
  • This is important to populations as the raw material for natural selection
    Genetic Variation
  • A method of organizing the chromosomes of a cell in relation to number, size, and type if known as:
    Karyotype
  • Pairs of chromosomes that are similar in shape and size are known as:
    Homologous chromosomes
  • A zygote (fertilized egg) has _______ chromosomes
    46
  • Gametes have ______ the number of chromosomes
    Half
  • Eggs have ______ chromosomes
    23
  • _______________________ pairs carry genes controlling the same inherited traits
    Homologous
  • 2n = ?
    46
  • When different genes independently separate from one another when reproductive cells develop it is defined as:
    Independent Assortment
  • How many total divisions does meiosis have compared to mitosis?
    Two divisions (Meiosis I and II)
  • The growth process of the primary egg is defined as:
    Oogenesis
  • Sex cells divide in meiosis to form these cellular products in males and females
    Boys = sperm Girls = egg
  • The form of cell division by which gametes with half the number of chromosomes are produced is known as:
    Meiosis
  • The number of pairs of non-sex chromosomes, known as autosomes, is:
    22 pairs
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