PATHOLOGY

PATHOLOGY MCQ

CELL DAMAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following cell cycle descriptions is CORRECT?
A
Chromosomes are replicated during the G1 phase.
B
Interphase is when the cell spends most of its time performing its cell functions.
C
The S phase consists of prophase, metaphase, anaphase, and telophase.
D
None of the above
Explanation: 

Detailed explanation-1: -1) Ans-b) Interphase is when a cell spends most of its time performing its cell functions.

Detailed explanation-2: -During S phase the cell replicates its DNA so that each daughter cell can get the correct amount of DNA after mitosis. Next, is G2 phase where the cell makes proteins necessary for cell division and duplicates its organelles. These phases, collectively called interphase, take up most of the cell’s life.

Detailed explanation-3: -A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division.

Detailed explanation-4: -However, mitosis and cytokinesis last only about an hour, so approximately 95% of the cell cycle is spent in interphase-the period between mitoses. During interphase, the chromosomes are decondensed and distributed throughout the nucleus, so the nucleus appears morphologically uniform.

Detailed explanation-5: -A cell spends the longest in Interphase due to the following reasons: Cell growth takes place during this period. DNA synthesis takes place which is in preparation for pre-mitotic division. Replication of chromosomes takes place.

There is 1 question to complete.