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Consider the following statements: 1. DNA replication takes place when chromatin is opened up. 2. Chromatin organises itself into rod-shaped chromosomes before cell division. 3. Both prokaryotes and eukaryotes have the same process for cell division. Which of the statements given above is/are correct?

Options

  1. A1 only
  2. B1 and 2 only
  3. C1,2 and 3
  4. D3 only

Correct answer

B. 1 and 2 only

Step-by-step solution

1. DNA replication does indeed take place when chromatin (the complex of DNA and proteins) is opened up. During replication, the chromatin structure unfolds to allow access to the DNA strands so that they can be copied. 2. Before cell division, chromatin condenses and organizes itself into rod-shaped structures called chromosomes. This condensation ensures that each daughter cell receives a complete set of genetic information during cell division.

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