In semiconservative replication, how many parental strands are present in each daughter DNA molecule?

Study for the DNA Structure, Replication, Transcription and Translation Test with flashcards and multiple choice questions. Each question offers hints and explanations. Prepare thoroughly and excel in your exam!

Multiple Choice

In semiconservative replication, how many parental strands are present in each daughter DNA molecule?

Explanation:
In semiconservative replication, each daughter DNA molecule contains one strand from the original parent and one newly synthesized strand. So there is one parental strand in every daughter molecule. The other possibilities don’t fit because two parental strands in a single daughter would mean both original strands are retained without new synthesis, zero would mean no old template is present, and three isn’t biologically possible.

In semiconservative replication, each daughter DNA molecule contains one strand from the original parent and one newly synthesized strand. So there is one parental strand in every daughter molecule. The other possibilities don’t fit because two parental strands in a single daughter would mean both original strands are retained without new synthesis, zero would mean no old template is present, and three isn’t biologically possible.

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