Question

Which is the longest phase of the cell cycle?
(A) $G_1$ phase
(B) $G_2$ phase
(C) Prophase
(D) Telophase

Answer 1

Hint: It is the first stage of karyokinesis of the M-phase of the cell cycle. This phase is also helpful in separating the same type of genetic material again and again in the nucleus of a parent cell into two identical daughter cells. Chromosomes can be easily visible in this phase as well.

Complete answer:
1.The M Phase is likely to start from the nuclear division and ends with the division of cytoplasm.
2.The M-phase is of two types: Mitotic (in body cells) and Meiotic (in germ cells or reproductive cells).
3.The first stage of both mitotic and meiotic phases is the prophase.
4.The meiotic phase has two prophases: prophase I and prophase II.
5.The prophase I of meiosis is further divided into 5 phases- leptotene, zygotene, pachytene, diplotene, and diakinesis.

Hence, the correct answer is option (D)

Note: 1.Prophase can be marked just by the initial stage of condensation of the chromosomal material.
2.In between the chromatin condensation process, the chromosomal has become untangled.