Molecular Genetics Test Review

The replication of DNA is...

• conservative
• dispersive
• semi-conservative
• random

Tags

NGSS.HS-LS3-2

A mutation leading to an early 'stop' codon is a ...

• frameshift mutation
• silent mutation
• missense mutation
• nonsense mutation

The two strands in a DNA molecule are held together by ...

• hydrogen bonds
• phosphodiester bonds
• covalent bonds
• ionic bonds

Which of the following enzymes is NOT needed in replication?

• DNA ligase
• RNA primase
• DNA polymerase III
• RNA polymerase

The genetic code is ...

• a triplet code
• species specific
• RNA-based
• still unknown

Which of the following units are repeatedly joined together to form a strand of DNA? (This is the MONOMER of DNA.) 

• amino acids
• nucleotides
• fatty acids
• polysaccharides

Which enzyme is responsible for adding nucleotides?

• Topoisomerase
• DNA Polymerase
• Ligase
• Primase

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.HS-LS1-1

In what phase of the cell cycle does DNA replication take place?

• G1
• S
• G2
• M

The enzyme that unzips the DNA to prepare for replication

• helicase

• replicase

• polymerase

• synthase