AP Biology All Units

Genetic information is stored in and passed to subsequent generations through what molecule(s)

• DNA only

• RNA only

• DNA and sometimes RNA

Tags

NGSS.HS-LS3-1

Prokaryotic organisms typically have ________ chromosomes, while eukaryotic organisms typically have multiple ________ chromosomes.

• linear, circular

• circular, linear

Which nucleotide pairs with Thymine?

• Uracil

• Adenine

• Cytosine

• Guanine

Which is NOT correct according to base pair rules?

• Adenine - Thymine

• Cytosine - Guanine

• Adenine - Guanine

• Adenine - Uracil

Small, circular, double-stranded DNA molecules that carry accessory genes separate from those of a bacterial chromosome are called what?

• Plasmids

• Nucleoids

• Ribosomes

• RNA's

Adenine and Guanine have a double ring structure, so they are called what?

• Pyrimidines

• Purines

• Puritans

What type of bond holds nitrogen bases to one another forming the "rungs" of the DNA ladder?

• Covalent

• Hydrogen

• Ionic

• Phosphodiester

What famous scientists built the first double helix model of DNA?

• Hershey & Chase

• Avery & MacLeod

• Watson & Crick

• Wilkins & Franklin

Which of the following best describes the DNA molecules produced by replication

• One DNA molecule with two original strands, and a second DNA molecule with two new strands

• Two DNA molecules, each containing one original strand and one new strand

In DNA Replication, which enzyme helps synthesize new strands of DNA?

• Helicase

• Topoisomerase

• DNA Polymerase

• Ligase