Following are the stages of cell division:
A. Gap 2 phase
B. Cytokinesis
C. Synthesis phase
D. Karyokinesis
E. Gap 1 phase
Choose the correct sequence of stages from the options given below:
C-E-D-A-B
E-B-D-A-C
B-D-E-A-C
E-C-A-D-B
The correct sequence is:
G? phase (Gap 1) → S phase (Synthesis) → G? phase (Gap 2) → Karyokinesis → Cytokinesis.
Which one of the following is the quiescent stage of the cell cycle?
M
The cells that do not divide further exit G? phase to enter an inactive stage called quiescent stage (G?) of the cell cycle. Cells in this stage remain metabolically active but no longer proliferate unless called on to do so depending on the requirement of the organism."
Match List I with List II:
| List I | List II | ||
| A. | M Phase | I. | Proteins are synthesized |
| B. | Phase | II. | Inactive phase |
| C. | Quiescent stage | III. | Interval between mitosis and initiation of DNA replication |
| D. | Phase | IV. | Equational division |
Choose the correct answer from the options given below:
A-IV, B-I, C-II, D-III
A-II, B-IV, C-I, D-III
A-III, B-II, C-IV, D-I
A-IV, B-II, C-I, D-III
Enter Answer here
Among eukaryotes, replication of DNA takes place in
G? phase
G? phase
M phase
S phase
S or synthesis phase marks the period during which DNA synthesis or replication takes place. During this phase, the amount of DNA per cell doubles. If the initial amount of DNA is denoted as 2C, then it increases to 4C."
Given below are two statements
Statement I: During G? phase of the cell cycle, the cell is metabolically inactive.
Statement II: The centrosome undergoes duplication during the S phase of interphase.
In light of the above statements, choose the most appropriate answer from the options given below:
Statement I is correct but Statement II is incorrect.
Statement I is incorrect but Statement II is correct.
Both Statement I and Statement II are correct.
Both Statement I and Statement II are incorrect
The cells in G? phase (quiescent stage) of cell cycle are metabolically active but no longer proliferate unless called on to do so depending on the requirements of the organisms. During S-phase of interphase, the centrosome begins to divide in centriole-containing cells to form two centrosomes or centriole pair.
Match List I with List II:
| List I | List II | ||
| (p) | S phase | (i) | Proteins are synthesized |
| (q) | phase | (ii) | Inactive phase |
| (r) | Quiescent stage | (iii) | Interval between mitosis and initiation of DNA replication |
| (s) | phase | (iv) | DNA replication |
Select the correct answer from the options given below:
(ii), (iv), (iii), (i)
(iii), (ii), (i), (iv)
(iv), (ii), (iii), (i)
(iv), (i), (ii), (iii)
Enter Answer here
The fruit fly has 8 chromosomes (2n) in each cell. During interphase of mitosis, if the number of chromosomes at phase is 8, what would be the number of chromosomes after S phase?
32
8
16
4
In S-phase, the amount of DNA per cell doubles. However, there is no change in the chromosome number. So, in fruit fly the number of chromosomes will remain same, i.e., 8.
The centriole undergoes duplication during
phase
S-phase
prophase
metaphase
The centriole undergoes duplication during S-phase which plays role in formation of the spindle fibres required to separate chromosomes during mitosis.
Identify the correct statement with regard to phase (Gap 1) of interphase.
DNA synthesis or replication takes place.
Reorganization of all cell components takes place.
Cell is metabolically active, grows but does not replicate its DNA
Nuclear division takes place.
S or synthesis phase marks the period during which DNA synthesis takes place. Reorganisation of all cellular components takes place in M-phase. This phase also starts with nuclear division (Karyokinesis)
Some dividing cells exit the cell cycle and enter a vegetative inactive stage. This is called the quiescent stage (). This process occurs at the end of
M phase
phase
S phase
phase
Enter Answer here
