SaraNextGen.Com

Select the correct statements regarding S-phase of interphase

I. Occurs between and

II. DNA replication begins in the nucleus

III. Centrioles duplicate in the cytoplasm

IV. As DNA is doubled, number of chromosomes also doubles

The option with correct statements is

a)

IV and III

b)

I, II, III and IV

c)

II, III and IV

d)

I, II and III



Question ID - 3181 | SaraNextGen Top Answer

Select the correct statements regarding S-phase of interphase

I. Occurs between and

II. DNA replication begins in the nucleus

III. Centrioles duplicate in the cytoplasm

IV. As DNA is doubled, number of chromosomes also doubles

The option with correct statements is

a)

IV and III

b)

I, II, III and IV

c)

II, III and IV

d)

I, II and III

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

S-phase is the sub-phase between -phase and -phase, during which DNA synthesis or replication takes place.

In animal cells, during the S-phase, DNA replication begins in the nucleus and the centriole duplication in the cytoplasm. The amount of DNA per cell doubles in the nucleus. If the initial amount of DNA is denoted as 2C, then it increases to 4C. However, there is no increase in the chromosome number

127 votes


127