What are chromatids?
Q: What are chromatids?
A: Chromatids are the daughter strands of a duplicated chromosome which are joined by a single centromere.
Q: How do chromatids become separate chromosomes?
A: When the centromere divides, the chromatids become separate chromosomes.
Q: What does each daughter chromatid contain?
A: Each of the two daughter chromatids contains the same DNA and chromatin protein as its original chromosome.
Q: Does crossing over occur between sister or non-sister chromatids during meiosis?
A: During meiosis, crossing over (exchanges) take place between two of the non-sister chromatids.
Q: What is the consequence of crossing over between non-sister chromatids?
A: Crossing over between non-sister chromatids produces genetic recombination and increases variability of gametes.
