What will be the DNA content and number of chromosomes in a cell, after S phase as compared to the gamete of the same organisms?

Question

What will be the DNA content and number of chromosomes in a cell, after S phase as compared to the gamete of the same organisms? (A) Same DNA content but double chromosome number (B) Four times DNA content but double chromosome number (C) Same DNA content but half chromosome number (D) Half DNA content but double chromosome number

Tardigrade Admin · Accepted Answer

During S phase, replication increases the DNA content of the cell from 2n to 4n, so cells in S have DNA contents ranging from 2n to 4n and the cell is still genetically diploid (2n chromosome number).

Q. What will be the DNA content and number of chromosomes in a cell, after S phase as compared to the gamete of the same organisms?

Same DNA content but double chromosome number

Four times DNA content but double chromosome number

Same DNA content but half chromosome number

Half DNA content but double chromosome number

During S phase, replication increases the DNA content of the cell from 2n to 4n, so cells in S have DNA contents ranging from 2n to 4n and the cell is still genetically diploid (2n chromosome number).