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Multiple Choice
The process of semiconservative DNA replication occurs in three main stages: unwinding, _______, and joining. Which term correctly fills the blank?
A
transcription
B
splicing
C
complementary base pairing
D
translation
Verified step by step guidance
1
Identify the three main stages of semiconservative DNA replication. The problem states the first stage as 'unwinding' and the last as 'joining'.
Recall that during DNA replication, after the DNA strands are unwound, new nucleotides are added to form a complementary strand. This process involves matching bases according to base pairing rules.
Understand that 'complementary base pairing' refers to the process where adenine pairs with thymine and cytosine pairs with guanine, ensuring accurate copying of the DNA sequence.
Recognize that 'transcription' and 'translation' are processes related to gene expression, not DNA replication, and 'splicing' is related to RNA processing.
Conclude that the correct term to fill the blank, describing the stage between unwinding and joining in DNA replication, is 'complementary base pairing'.