RQ11_DNA REP

Which enzyme does the "most work" (the most DNA synthesis) during DNA replication? Helicase Primase RNA polymerase DNA polymerase III Ligase DNA polymerase I

DNA polymerase III

Which of the following are required "reagents" for DNA replication? (Choose ALL correct answers) a. NTPs (nucleoside triphosphates - ATP, CTP, UTP, & GTP) b. dNTPs (deoxyribonucleoside triphosphates - dATP, dTTP, dGTP, dCTP) c. DNA template molecules d. RNA template molecules

a. NTPs (nucleoside triphosphates - ATP, CTP, UTP, & GTP) b. dNTPs (deoxyribonucleoside triphosphates - dATP, dTTP, dGTP, dCTP) c. DNA template molecules *Note: NTPs (ATP, GTP, CTP, UTP) are used by primase to make the RNA primers necessary for DNA replication.

What parts of the genome (set of chromosomes) is replicated during eukaryotic DNA replication? a. The whole genome b. Only the most useful parts of the genome (most frequently transcribed genes c. All of the chromosomes except the centromeres (the parts in the "middle" where sister chromatids are stuck together) d. Only the ends of the chromosomes (the telomeres)

a. The whole genome

In which of the following situations would DNA replication occur? Check ALL that apply. a. When you need more cells to "patch" a scrape on your arm. b. When you step on a tack and you need to transmit that information to your brain c. When your muscle cells are replacing the proteins needed for contraction d. When a bacterial cell is going to divide into two cells e. When a cell runs out of glucose and it needs to break down amino acids for energy instead f. When a cell in a human embryo is going to divide into two cells.

a. When you need more cells to "patch" a scrape on your arm. d. When a bacterial cell is going to divide into two cells f. When a cell in a human embryo is going to divide into two cells.

Okazaki fragments are made during: a. DNA degradation b. DNA replication, only on the lagging strand c. DNA replication, only on the leading strand d. DNA replication, on both leading and lagging strands

b. DNA replication, only on the lagging strand

DNA synthesis occurs a. in either the 5' to 3', or the 3' to 5' direction on any given DNA strand b. only in the 3' to 5' direction c. only in the 5' to 3' direction d. in different directions: 5' to 3' on one strand, 3' to 5' on the other

c. only in the 5' to 3' direction