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Biology · Principles and Processes in Biotechnology

हिन्दी

An alien piece of DNA transferred into a host organism cannot multiply by itself unless it becomes integrated into the host's genome. This is because replication requires a specific sequence known as:

  1. Selectable marker site
  2. Origin of replication
  3. Promoter region
  4. Recognition sequence of exonuclease

Correct answer · Option 2

Origin of replication

Explanation

Alien DNA needs to link with the 'origin of replication' (ori) sequence on the host chromosome, which is responsible for initiating replication and enabling multiplication.
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