Crossing over during meiosis accounts for genetic material from each of an organism's parents.
- The duplicated chromatids remain joined during meiosis I each daughter cell receives only one chromosome of each homologous pair.
- By shuffling the genetic deck in this way the gametes resulting from meiosis II have new combinations of maternal and paternal chromosomes increasing genetic diversity.
What is chromatids?
- A chromatid is one of the two identical halves of a chromosome that has been replicated in preparation for cell division.
- The two sister chromatids are joined at a constricted region of the chromosome called the centromere.
Hence, A option is correct.
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