4 Written questions
3 Multiple choice questions
- The insertion of an incorrect nitrogenous base during DNA replication that is not detected and corrected.
- The sequence, or order, in which the nitrogenous bases adenine (A), cytosine (C), guanine (G), and thymine (T) are arranged in a gene or a DNA fragment, or in an organism's genome.
- The key enzyme that cells use to replicate their DNA. In DNA technology, DNA polymerase is used in the polymerase chain reaction to make many copies of a gene or other DNA sequence.
3 True/False questions
apoptosis → A pair of complementary nitrogenous bases that have formed hydrogen bonds with each other.
DNA repair → A three-step process in which damage to DNA is repaired. Damaged DNA is first recognizedthen removed, and then replaced with newly synthesized DNA.
DNA replication → The duplication, or copying, of a DNA molecule. DNA replication begins when the hydrogen bonds connecting the two strands of DNA are broken, causing the strands to unwind and separate. Each strand is then used as a template for the construction of a new strand of DNA.