The number of chromosomes in onion root tip cells at G2 phase will be

 

1.      16

 

2.      12

 

3.      8

 

4.     6

Number of chromosomes at S phase in onion cell will be

1.      16

2.      12

3.      18

4.     8

What will be the amount of DNA content before the S phase

1.      C

2.      2C

3.      3C

4.     Can be any amount

During G2 Phase the amount of DNA will be

1.      Double that of G1

2.      Double that of S phase

3.      Same that of initial stage of S phase

4.     Same as that of G1

After M Phase the amount of DNA will be

1.      Same as that of G1

2.      Same as that of end of S phase

3.      Double that of G1

4.     None of these

After M Phase the number of chromosomes will be

1.      Same as that of G1

2.      Double as that of G2

3.      Half as that of S

4.     None of these

The cell which are in quiescent stage are in

1.      G1

2.      G₀

3.      G2

4.     S phase

G₀ cells

1.       Have translation process occurring in cytoplasm

2.      Have Transcription process occurring in nucleus

3.      Metabolically active

4.     All of these

From which phase does cell move in Go phase

1.      G1

2.      M phase

3.      G0

4.     G2

Animals show mitosis in

1. Haploid somatic cells

2. Diploid somatic cells

3. All type of haploid cells

4. A and B are correct