Bio Unit 5 Exam Review

Which of the following is not a DNA base?

• adenine (A)

• guanine (G)

• cytosine (C)

• histidine (H)

What is the complementary strand to this DNA sequence: ATACCGCTG

• TATGGCGAC

• ATACCGCTG

• CGCAATAGT

• GCGTTATCA

The enzyme that unzips DNA during replication is called:

• helicase

• zipase

• DNA polymerase

• ligase

The enzyme that builds the new DNA strand during replication is called:

• helicase

• zipase

• DNA polymerase

• ligase

The enzyme that bonds nucleotides together during replication is called:

• helicase

• zipase

• DNA polymerase

• ligase

At the end of replication, how many DNA molecules are there?

• 1

• 2

• 12

• 6

When DNA replication is complete, each DNA molecule consists of:

• one original strand and one new strand

• two new strands

• two original strands

• unzipped strands

What is the backbone of DNA made of?

• sugar and phosphate

• nitrogen bases

• sugar and nitrogen bases

• phosphate and nitrogen bases

The shape of DNA is arranged as:

• a double helix

• one strand of nucleotides

• squiggly lines

• a single nucleotide

What are the correct base pair rules in DNA?

• A-T and C-G

• A-C and T-G

• A-G and C-T

• A-A, C-C, G-G, and T-T