Question

On which strand of DNA, replication is continuous?

• A. $5^{\prime }-3^{\prime }$ polarity strand
• B. $5^{\prime }-4^{\prime }$ polarity strand
• C. $3^{\prime }-5^{\prime }$ polarity strand
• D. $3^{\prime }-4^{\prime }$ polarity strand

Answer 1

The correct option is C $3^{\prime }-5^{\prime }$ polarity strand

The DNA polymerase can only synthesize a new strand of DNA in the 5'-3' direction.

The polarity of the strand should be 3'-5' so that the synthesis of the new strand could be from 5'-3' direction.

So, the correct option is '3' to 5' polarity strand'.