Question

If you observe a dividing cell and notice that the nuclear membrane is still partially intact but the chromosomes are mostly condensed, what stage in the cell cycle would you be able to say the cell is at? -Metaphase of Mitotic phase -S phase of Interphase -G2 phase of Interphase -Prophase of Mitotic phase

Answer 1

Answer:

Prophase of Mitotic phase

Explanation:

The cell cycle encompasses all the series of events that occurs in the cell from its DNA replication to the division of its cytoplasm (CYTOKINESIS). The cell cycle, however, consists of stages characterized by different changes; Interphase and Mitotic phase. The Interphase is the resting stage of the cell. It occurs between two successive divisions (mitosis). It consists of the G1, S, and G2 phases.

On the other hand, the Mitotic phase or M phase is where the actual division occurs. It consists of four stages viz: Prophase, Metaphase, Anaphase, Telophase. The Prophase is the stage that kicks off the division process called karyokinesis or mitosis. It is characterized by the condensation of the chromatin material into visible chromosomes. In this stage, the membrane that envelopes the nucleus (containing the chromosomes) is not yet degraded. The degradation of the nuclear envelope occurs in the metaphase stage, in order for the mitotic spindle to be able to attach to the kinetochore of each chromosome.