Various phases of cell cycle are controlled by
1. | Cyclin proteins |
2. | Cyclin dependent protein kinases |
3. | Phosphorylation of cyclin dependent protein kinases |
4. | More than one option is correct |
Amount of DNA and Number of chromosomes in G2 phase of cell cycle would be
1. | Double and equal to that of in G1 phase respectively |
2. | Half and equal to that of in G1 phase respectively |
3. | Equal and half to that of in G1 phase respectively |
4. | Double and double to that of in G1 phase respectively |
Exchange of genetic material between non-sister chromatids of homologous chromosomes in pachytene stage is facilitated by
(1) Dynein
(2) Recombinase
(3) chiasmata
(4) Calmodulin
Plant cells do not divided their cytoplasm by forming a furrow in cell membrane like animal cells rather they divide by cell plate because
1. | Plant cell do not have centrioles |
2. | Cell wall formation beings with formation of cell plate |
3. | Cell plate represents middle lamella between the walls of two adjacent cells |
4. | Plant cells are enclosed by a relatively inextensible wall |
Which of the following number of cells can be expected from the human cell culture after 70hrs
1. 4
2. 8
3. Both 1 and 2
4. 2
Which of the following is a continuous process?
1. Cell growth (in terms of cytoplasmic increase)
2. Cell differentiation
3. DNA duplication
4. Cell division
Cell growth is a continuous process in terms of
1. | Increase in protein content |
2. | Increase in DNA content |
3. | Increase in cytoplasmic content |
4. | Increase in RNA content |
The process of distribution of duplicated DNA in the daughter cells is
1. Easy process
2. A complex series of events
3. A single complex process
4. Easiest process in all the events bof cell cycle.
How many cells can be expected in a yeast culture after 540 minutes?
1. 64
2. 512
3. 256
4. 32
If a person forgets to take the reading of his cell culture data now he needs to conclude among the two plates A( with 16 cells) and B (with 128 cells). Which plate has growth of more than 9hrs and which plate has growth of less than 9 hrs if they were yeast cells?
1. | A with more than 9hrs |
2. | B with more than 9 hrs |
3. | A does not show yeast cell culture |
4. | B with less than 9 hrs |