DNA, Proteins, Mutations

In DNA molecules, which nitrogenous base is complementary to Cytosine?

• Uracil

• Guanine

• Adenine

• Thymine

This is the primary enzyme responsible for DNA replication; it "reads" DNA strands and attaches complementary bases in the correct sequence.

• DNA Polymerase III

• DNA Polymerase I

• DNA Helicase

• DNA Ligase

Which biomolecule is primarily responsible for the storage of the genetic information necessary for an organism to perform all of its functions?

• mRNA

• Proteins

• rRNA

• DNA

DNA replication produces two new DNA molecules, each of which contains one old strand and one newly-synthesized strand. For this reason, we say that DNA replication is:

• Conservative

• Semi-conservative

• Destructive

• Creative

These molecules are the "building blocks" of DNA and RNA:

• Nucleotides

• Amino Acids

• Nucleic Acids

• Proteins

This enzyme is responsible for unwinding/"unzipping" the DNA double helix during the first step of DNA replication:

• DNA Ligase

• DNA Zipperase

• DNA Polymerase III

• DNA Helicase

The three components of a nucleotide are a pentose sugar (either deoxyribose or ribose), a phosphate group, and a_____________________

• Nitrogenous base

• Genetic base

• Hydrogenous base

• Random chemical

The overall structure of a DNA molecule can be described as a:

• Helix

• Double Helix

• Ribbon

• Single strand

The small segments of DNA that DNA Polymerase III creates on the lagging strand during replication are called:

• Nucletotides

• RNA primers

• Okazaki fragments

• Polypeptides

This is the enzyme that finishes the process of DNA replication by connecting the many Okazaki fragments of the lagging strand:

• DNA Polymerase III

• DNA Polymerase I

• DNA Ligase

• Primase