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NEETZoologyMolecular Basis of Inheritance

During transcription, which of the following base pairs form the complementary base pair?

Options

  1. AAdenine-Thymine
  2. BAdenine-Uracil
  3. CThymine-Cytosine
  4. DGuanine-Cytosine

Correct answer

B. Adenine-Uracil

Step-by-step solution

The process of copying genetic information from one strand of the DNA into RNA is termed as transcription. Here also, the principle of complementarity governs the process of transcription, except the adenosine complements now form base pairs with uracil instead of thymine. However, unlike in the process of replication, which once set in, the total DNA of an organism gets duplicated, in transcription only a segment of DNA and only one of the strands is copied into RNA. This necessitates defining the boundaries that

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