Question

Coiling of chromatids in mitotic and meiotic division is

• A. Paranemic in both
• B. Plectonemic in both
• C. Paranemic in mitosis and plectonemic in meiosis
• D. Plectonemic in mitosis and paranemic in meiosis

Answer 1

Answer: (D)

Plectonemic in mitosis and paranemic in meiosis

Chromosomes are visible only during cell division. Rest of the time, DNA is present as uncoiled chromatin material. Coiling of chromatin material during cell division may either be plectonemic (compact) or paranemic (loose). The coiling is usually plectonemic in mitosis and paranemic in meiosis.

So, the correct answer is option D.