AIIMS 2011
- Exam
- AIIMS
- Year
- 2011
- Subject
- Botany
- Chapter
- Cell Cycle and Cell Division
AIIMS 2011 · Botany · Cell Cycle and Cell Division
Which of the following is not a characteristic of meiosis?
Which of the following is not a characteristic of meiosis?
Options
- AIt involves two stages of DNA replication one before meiosis-I and another before meiosis-II
- BIt involves recombination and crossing over
- CSister chromatids separate during anaphaseII
- DNuclear membrane disappears during prophase.
Correct answer
A. It involves two stages of DNA replication one before meiosis-I and another before meiosis-II
Step-by-step solution
Chromosome replication occurs once but meiosis has two M-phases each with its own karyokinesis and cytokinesis. As a result chromosome number is halved. The transition period between M-phase I (meiosis I) and M-phase II (meiosis II) is short and without DNA replication. It is called interkinesis.