Prepare for NEET Biology Cell Cycle and Cell Division with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert help for mitosis and meiosis understanding.
If a cell has 2n chromosomes at the beginning of interphase, how many chromatids will it have at the end of S phase?
n
2n
3n
4n
During which phase of mitosis do the sister chromatids separate?
Prophase
Metaphase
Anaphase
Telophase
In which stage of meiosis do sister chromatids separate?
Anaphase I
Telophase I
Anaphase II
Telophase II
What is the primary outcome of meiosis II?
Separation of homologous chromosomes
DNA replication
Crossing over
Separation of sister chromatids
Which of these events does NOT occur during meiosis II?
Separation of sister chromatids
Alignment of chromosomes at the metaphase plate
DNA replication
Formation of haploid daughter cells
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
Recombination nodules facilitate the exchange of genetic material between:
Non-sister chromatids of homologous chromosomes
Sister chromatids of homologous chromosomes
Non-homologous chromosomes
Sister chromatids of the same chromosome
