Question

An expected meiotic pairing configuration in a __________ would be trivalent. a. Monoploid b. Triploid c....

An expected meiotic pairing configuration in a __________ would be trivalent.

a. Monoploid

b. Triploid

c. Monosomic individual

d. Trisomic individual

e. Diploid

Homework Answers

Answer #1

Ans.

  • During meiosis, formation of pairs with their homologes is one of the most important unique properties of chromosomes.
  • This process begins without any homologs association but later forms a synaptonemal complex - synapsis, which appears as a polymer, holding each homologs pair along their entire length together.
  • Homologous chromosomes pairing is known as synapsis and may involve cross over between non-sister chromatids at chiasmata.
  • Homologs alignment depends upon many factors such as ;
  1. Interaction of many sites on chromosomes together,
  2. Genetic recombination, and
  3. Telomeres association with the envelope of nucleus
  • Meiotic pairing ensures the proper chromosomes distribution in daughter cells.
  • This pairing often results in crossover between chromosomes.
  • A triploid will be the expected meiotic pairing configuration in a trivalent.
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