Prophase of meiosis I is long and complicated because it is during this phase that crossing over occurs between homologous chromosomes. Prophase I is comprised of Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis.
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Similar Questions
Q1
Pick out the item which has sequential arrangement. i) Zygotene→Leptotene→Pachytene→Diplotene→Diakinesis. ii)Diakinesis→Zygotene→Leptotene→Pachytene→Diplotene. iii)Leptotene→Zygotene→Pachytene→Diplotene→Diakinesis.
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Q2
Pick out the item which has sequential arrangements. a) Zygotene → Leptotene → Pachytene → Diplotene → Diakinesis. b) Diakinesis → Zygotene → Leptotene → Pachytene → Diplotene c) Leptotene → Zygotene → Pachytene → Diplotene → Diakinesis.
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Q3
Arrange the following events of meiosis I in the correct order:
(i) Diplotene
(ii) Pachytene
(iii) Zygotene
(iv) Diakinesis
(v) Leptotene
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Q4
Prophase of the first meiotic division is typically longer and complex. It is subdivided into 5 phases: leptotene, zygotene, pachytene, diplotene and diakinesis. Which of the following statements is not correct of these phases?
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Q5
Regarding the assertion and reason; choose the correct option_____.
Assertion [A]: Prophase I of Meiosis I is the longest phase during the formation of gametes.
Reason [R]: It has five sub-stages Leptotene, Zygotene, Pachytene, Diplotene and
Diakinesis; during which the number of chromosomes is doubled.