History & Structure of DNA

What type of bonds hold together nitrogen bases?

• water bonds

• covalent bonds

• peptide bonds

• hydrogen bonds

What enzyme unzips the DNA strands to allow replication to occur?

• polymerase

• ligase

• helicase

• primase

Which of the following is not part of a molecule of DNA?

• ribose sugar

• deoxyribose sugar

• nitrogen base

• phosphate group

Which of the following is a correct base pair in DNA?

• A-G

• A-C

• C-T

• T-A

• G-T

Replication is the process by which

• DNA makes copies of itself

• RNA makes copies of itself

• DNA makes proteins

• The Borg reproduce

Who developed the general model of DNA that we use today?

• Rosiland Franklin

• Watson & Crick

• Eli Whitney

• Robert Oppenheimer

The work of scientists including Griffin, Avery, Hershey & Chase and Franklin helped us to determine the __ are responsible for carrying genetic material.

• Amino Acids
• Proteins
• Nucleic Acids
• Carbohydrates

By using radioactive isotopes, Hershey and Chase were able to conclude that __ is/are the carrier(s) of genetic information.

• DNA
• Proteins
• Carbohydrates
• Lipids

The process of DNA replication occurs in which organelle?

• Cytoplasm
• Ribosome
• Nucleus
• Mitochondria

The enzyme that constructs the new strand of DNA during replication is known as...

• DNA Helicase
• DNA Polymerase
• DNA Ligase
• RNA Polymerase