Interphase

Q.

What is G0 (quiescent phase) of cell cycle?

Q. Centrioles duplicate during ______ in the ______.

1. $G_2$ phase, nucleus
2. $G_2$ phase, cytoplasm
3. S phase, cytoplasm
4. S phase, nucleus

Q. Centrioles duplicate during ______ in the ______.

1. $G_2$ phase, nucleus
2. $G_2$ phase, cytoplasm
3. S phase, cytoplasm
4. S phase, nucleus

Q.

Some dividing cells exit the cell cycle and enter the vegetative inactive stage. This is called the Quiescent Stage (G0). This process occurs at the end of?

1. S phase

2. G₂ phase

3. M phase

4. G₁ phase

Q.

why is meosis called reductional division?

Q. When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?

1. $G_1$/S
2. $G_2$/M
3. M
4. Both $G_2$/M and M

Q.

What are the events taking place during the interphase?

Q.

Describe the events taking place during interphase.

Q. During the cell cycle, RNA and protein synthesis takes place during:

1. Cytokinesis
2. $G_1$ phase and $G_2$ phase
3. S Phase
4. M phase

Q.

What is the recognition site for EcoRI?

Q.

A change in the amount of yolk and its distribution in the egg will affect

1. formation of zygote

2. fertilization

3. number of blastomeres produced

4. pattern of cleavage

Q.

Question 34
Two key events take place, during S-phase in animal cells, DNA replication and duplication of centriole. In which parts of the cell there events occur?

Q.

Are diploid cells produced by mitosis?

Q. The longest stage of the cell cycle is

1. prophase
2. metaphase
3. telophase
4. interphase

Q.

What is the application of electroporation?

Q.

Can a chromosome have one chromatid?

Q. If the DNA content of a cell in G${}_1$ phase is 4C, what would be its DNA content in G${}_2$ phase?

1. 1C
2. 8C
3. 2C
4. 4C

Q.

Can there be mitosis without DNA replication in S phase?

Q. Which phase of the cell cycle is called the pre-mitotic phase?

1. $G_1$ phase
2. $G_2$ phase
3. S phase
4. M phase

Q. If the DNA content of a cell in G${}_1$ phase is 4C, what would be its DNA content in G${}_2$ phase?

1. 1C
2. 2C
3. 4C
4. 8C

Q. First gap phase in cell cycle is

1. after DNA replication
2. after duplication of centrioles
3. before DNA replication
4. after karyokinesis

Q.

Question 21

At what stage of cell cycle does DNA synthesis take place?

Q.

Explain the meaning of permanent condensed chromosomes.

Q. Is RNA synthesis takes place in the cell cycle? If your answer is yes then at which phase of cell cycle does RNA synthesis takes place?

Q.

What happens during cell differentiation?

Q.

How long does the cell cycle take?

Q. DNA polymerase is synthesized in which of the following phase of cell cycle?

1. G1
2. S
3. G2
4. M

Q.

Do skin cells undergo meiosis?

Q.

The period occupied by a cell between the post-mitotic gap phase and semi-autonomous organelles duplication is characterized by:

1. Reformation of ER, GB & Nucleolus.

2. Movement of chromatids to opposite poles.

3. Duplication of Centrioles in cytoplasm.

4. Initiation of assemble of mitotic spindle.

Q.

What happens in meiosis 2?