Prepare for NEET Biology Cell Cycle and Cell Division (Meiosis) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to understand reduction division, crossing over, and genetic variation.
NEET Questions / Botany / Cell Cycle and Cell Division / Meiosis
Arrange the following sub-stages of Prophase I in the correct order: i) Pachytene, ii) Leptotene, iii) Zygotene, iv) Diplotene
i), ii), iii), iv)
ii), iii), i), iv)
iv), iii), ii), i)
iii), ii), i), iv)
During which phase of meiosis does the centromere split?
Anaphase I
Anaphase II
Metaphase I
Metaphase II
In meiosis, sister chromatids are held together at the centromere. Separation of sister chromatids and division of the centromere occurs during which stage?
Prophase II
Metaphase II
Anaphase II
Telophase II
Which of the following events does not occur during anaphase II of meiosis?
Sister chromatids separate
Centromeres divide
Homologous chromosomes separate
Chromosomes move to opposite poles
If a cell fails to divide its centromeres during meiosis II, what would be the immediate consequence?
Homologous chromosomes would not separate
Sister chromatids would not separate
DNA replication would not occur
The cell would enter interphase
The separation of sister chromatids and the division of the centromere are crucial for the proper distribution of genetic material. These events occur during:
Anaphase I
Telophase I
Prophase II
Anaphase II
Given below are two statements:
Statement I: Chromosomes begin to condense and become visible under a light microscope during the leptotene stage.
Statement II: The synaptonemal complex dissolves, marking the beginning of the diplotene stage.
In the light of the above statements, choose the correct answer from the options given below:
Both Statement I and Statement II are true
Both Statement I and Statement II are false
Statement I is true but Statement II is false
Statement I is false but Statement II is true
Which of the following statements is INCORRECT regarding the leptotene and diplotene stages of meiosis?
Homologous chromosomes pair in leptotene.
Chiasmata become visible during diplotene.
Chromosomes begin to condense in leptotene.
Crossing over occurs before diplotene.
The dissolution of the synaptonemal complex is a key event that marks the transition between which two stages of prophase I?
Leptotene and Zygotene
Zygotene and Pachytene
Pachytene and Diplotene
Diplotene and Diakinesis
During which stage of meiosis I do chromosomes become visible under a light microscope due to condensation?
Leptotene
Zygotene
Pachytene
Diplotene
