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NEET2008ZoologyMolecular Basis of InheritanceActual

In the DNA molecules

Options

  1. AThere are two strands which run antiparallel-one in 5^ 3^ direction and other in 3^ 5+
  2. BThe total amount of purine nucleotides and pyrimidine nucleotides is not always equal
  3. CThere are two strands which run parallel in the 5^ 3^ direction
  4. DThe proportion of Adenine in relation to thymine varies with the organism

Correct answer

A. There are two strands which run antiparallel-one in 5^ 3^ direction and other in 3^ 5+

Step-by-step solution

The 2 strands of DNA are antiparallel one in 5^ -3^ direction and the other in 3^ -5^ direction.

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