Question

1. (true or false) the process of dna replication results in a copy of the original dna molecule.
2. (true or false) dna does not have to break apart to be copied.
3. (true or false) after dna replication is complete, there are two new dna molecules; one molecule has both of the original strands and one molecule has two new strands of dna.

Explanation:

• Question 7: DNA replication is a semi - conservative process. The original DNA molecule serves as a template. New nucleotides are added according to base - pairing rules (A - T and G - C). So, the process of DNA replication results in a copy of the original DNA molecule.
• Question 8: DNA replication requires the separation of the two strands of the double - helix. Enzymes like helicase break the hydrogen bonds between base pairs to unwind the DNA. So, DNA has to break apart to be copied.
• Question 9: In semi - conservative replication, each new DNA molecule consists of one original (parent) strand and one new (daughter) strand. It is not the case that one molecule has both original strands and the other has two new strands.

Answer:

1. True
2. False
3. False