Chapter 12 Quiz Review

Which of the following is a purine?

• Adenine

• Uracil

• Thymine

• Cytosine

Which of the following is NOT a part of a nucleotide?

• Phosphate group

• Chromosome

• Deoxyribose sugar

• Nitrogenous Base

Which of the following enzymes is used in step 3 of DNA replication?

• Ligase

• Primase

• Helicase

• Polymerase

Which of the following enzymes is used in step 4 of DNA replication?

• Ligase

• Helicase

• Polymerase

• Primase

Which of the following enzymes is used in step 2 of DNA replication?

• Helicase

• Primase

• Ligase

• Polymerase

Which of the following enzymes is used in step 1 of DNA replication?

• Polymerase

• Helicase

• Ligase

• Primase

Which of the following are the proteins that a DNA strand wraps around during the formation of a chromosome?

• Deoxyribose

• Chromatids

• Ribosomes

• Histones

DNA replication takes place during which stage of the cell's life cycle?

• Transcription

• Translation

• Interphase

• Prophase

Which of the following nitrogenous bases is only found in RNA?

• Uracil

• Thymine

• Adenine

• Cytosine

Watson and Crick discovered the two strands of DNA

• are perpendicular

• are parallel

• are antiparallel

• are randomly aligned