Coiling of chromatids in the mitotic and meioti

The correct answer is C: Paranemic in mitosis and plectonemic in meiosis.

Explanation:
Paranemic Coiling:

Paranemic coiling refers to a type of coiling where the strands lie parallel to each other and are not intertwined.
This arrangement is observed during mitotic divisions, where the chromatid structure is more linear and organized for accurate and equal segregation into daughter cells.
Plectonemic Coiling:

Plectonemic coiling is a more complex coiling where the strands are interwound around each other.
This type of coiling is observed in meiotic divisions, especially during prophase I, when homologous chromosomes pair, synapse, and undergo recombination. The intertwined structure facilitates the crossing over process.
Why the distinction?
The nature of coiling in mitosis and meiosis is related to the functional requirements of each process:

Mitosis: Ensures accurate replication and equal segregation of sister chromatids to daughter cells.
Meiosis: Facilitates genetic recombination and proper segregation of homologous chromosomes.
Hence, the coiling is paranemic in mitosis and plectonemic in meiosis.