AP Bio DNA Replication

Which 2 molecules form the sides of the DNA ladder?

• deoxyribose and adenine

• deoxyribose and phosphate

• cytosine and guanine

• ribose and cytosine

Nitrogenous bases are joined by which type of bond?

• peptide bonds

• ionic bonds

• covalent bonds

• hydrogen bonds

DNA replication results in two DNA molecules,

• each one with two original strands

• each one with two new strands

• each one with one new strand and one original strand

Which enzyme is responsible for adding DNA nucleotides to a RNA primer?

• Topoisomerase

• DNA Polymerase

• Ligase

• Primase

Which enzyme joins the Okazaki fragments in the lagging strand?

• Helicase

• DNA Polymerase

• Ligase

• Primase

If a portion of DNA strand reads:

3' A A A T T T C 5'

The matching strand would read...

• 5' T T T A A A G 3'

• 3' T T T A A A G 5'

• 5' A A A T T T C 3'

• 3' U U U A A A G 5'

This picture is illustrating the ____ nature of DNA.

• antiparallel

• semiconservative

• helical

• radioactive

Tags

NGSS.HS-LS1-1

The strand of DNA that is replicated continuously from 5' to 3' is known as

• leading strand

• lagging strand

• parallel strand

• antiparallel strand

If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?

• 30
• 15
• 20
• 60

What group do the "smaller", single ringed bases such as thymine and cytosine belong to?

• complementary

• enzymes

• purine

• pyrimidine