Meiosis Prophase 1 : Diplotene and Diakinesis MCQ

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• What is the bivalent shape in diakinesis?
  ক

  X shaped

  খ

  O shaped

  গ

  Y shaped

  ঘ

  Star shaped
• The number of chiasma in diakinesis stage _________
  ক

  Increases

  খ

  Decreases

  গ

  Remains same

  ঘ

  There are no chiasma left
• The chromosomes in oocytes persist in diplotene stage for 12-50 years. State if it is true or false.
  ক

  True

  খ

  False
• Which of the following is wrong about diplotene?
  ক

  Endoplasmic vesicles increase in the number

  খ

  Nucleolus condenses

  গ

  Chromatid body is seen

  ঘ

  Chromosomes rotate by 180 degree to terminalize
• According to Darlington terminalization process is brought about by ___________ force.
  ক

  Electrostatic

  খ

  Hydrophobic

  গ

  Hydrophilic

  ঘ

  Covalent
• Number of chiasma / total number of bivalent is________________
  ক

  Degree of terminalization

  খ

  Frequency of terminaliztaion

  গ

  Degree of crossing over

  ঘ

  Frequency of crossing over
• In which of the following will you expect to see chiasma?
  ক

  Male diptera

  খ

  Female lepidoptera

  গ

  Scorpions

  ঘ

  Female Drosophila
• What is the normal number of chiasma seen in diplotene chromosomes?
  ক

  2

  খ

  4

  গ

  8

  ঘ

  16
• Homologous chromosomes in zygotene pair due to attraction and synaptonemal complex formation. Which of the following is true for diplotene phase?
  ক

  The chromosomes still attract although synaptonemal complex degenerates

  খ

  The synaptonemal complex persistes but chromosomes develop opposite charges

  গ

  The chromosomes repel and completely separate

  ঘ

  The synaptonemal complex breaks down
• The separation of the chromosomes in diplotene stage starts at _________________
  ক

  Telomere

  খ

  Region before telomere

  গ

  Region beside centromere

  ঘ

  Centromere