Biology DNA

Which of the following replication enzymes is used to unwind the DNA double helix?

• DNA polymerase

• Primase

• DNA ligase

• Helicase

Of the following DNA replication enzymes, which one links the Okazaki fragments of the lagging strand?

• DNA ligase

• DNA polymerase

• Helicase

• Primase

Which enzyme catalyzes the elongation of a new DNA strand in the 5' → 3' direction?

• Ligase

• DNA polymerase

• Primase

• Lactase

DNA is a polymer made of monomers (building blocks) called

• Nucleotides

• Proteins

• Amino Acids

• Lipids

A nitrogenous base is an important component of the nucleotide making up DNA. Which of the following correctly lists the four possible nitrogenous bases in DNA?

• glutamine, proline, tyrosine, phenylalanine

• adenine, guanine, cytosine, thymine

• leucine, proline, tyrosine, phenylalanine

• adenine, guanine, cytosine, uracil

Which of the following is true?

• Strand III is a lagging strand template while strand IV is a leading strand template

• Strand I is the leading strand while Strand II is the lagging strand

• Strand I and Strand II are template (parental) strands

• Strand III is complimentary to Strand II

DNA polymerase can only add nucleotides in the ___________ direction.

• 5' to 3'

• 5' to 5'

• 3' to 5'

• 3' to 7'

Which of the following complementary base pairs are correct?

• A - T

• T - C

• A - G

• G - U

Site or section where double-stranded DNA splits apart into 2 single strands

• Leading Strand

• Replication Fork

• Lagging Strand

• RNA primer

Which strand is replicated continuously?

• Leading strand

• Lagging strand

• Template strand