Question

Which of the following statement is correct ?
(a) DNA is synthesized through out the
cell cycle
(b) Cell division is inhibited by cytokinin
(c) Chromosome are condensed at S-stage
(d) Only extra chromosomal DNA is replicated at
any stage of cell cycle

Answer 1

Answer:

(a).DNA is synthesized through out the cell cycle.

Answer 2

The correct statement is: Only extra chromosomal DNA is replicated at

any stage of cell cycle.

The incorrect statements have been corrected as follows:

1. DNA is synthesized only during the S phase of the interphase in cell division.

2. Cell division is promoted by cytokinins as they are plant growth hormones.

3. Chromosomes are condensed at the prophase stage of cell division. In the S phase they are in the semi-condensed form in order to replicate.