Ch11

Front 1

Gene expression includes which of the following?

Back 1

transcription and translation

Front 2

The central dogma describes which of the following?

Back 2

the steps of gene expression

Front 3

Which of the following best describes the direction in which lagging strands are added?

Back 3

as 5' to 3' Okazaki fragments in an overall 3' to 5' direction only

Front 4

Which of the following correctly describes uracil and where is it found?

Back 4

It is a nitrogenous base found in RNA only

Front 5

Which of the following is another name for the template strand (the strand of DNA that is transcribed)?

Back 5

antisense strand

Front 6

Which of the following correctly describes events that occur during transcription?

Back 6

RNA polymerase binds to the promoter

Front 7

Which of the following correctly explains why DNA replication is described as semiconservative?

Back 7

Each daughter strand contains one old strand and one new strand

Front 8

During DNA replication in bacteria, which of the following enzymes adds DNA nucleotides to the growing strand?

Back 8

DNA polymerase III

Front 9

Topoisomerase II in bacteria is also called which of the following?

Back 9

gyrase

Front 10

DNA polymerase III adds DNA nucleotides in which of the following direction(s)?

Back 10

n the 5′ to 3′ direction only

Front 11

Which of the following removes the primers during DNA replication in bacteria?

Back 11

DNA polymerase I

Front 12

The noncoding, repetitive sequences at the end of eukaryotic chromosomes are called which of the following?

Back 12

telomeres

Front 13

During DNA replication, the lagging strand is formed from which of the following?

Back 13

Okazaki fragments

Front 14

Which of the following is the maximal rate of growth of a new bacterial DNA strand?

Back 14

1000 nucleotides per second

Front 15

Which statement best describes DNA polymerase I?

Back 15

It has exonuclease activity

Front 16

Which describes one difference between prokaryotic and eukaryotic DNA replication?

Back 16

Eukaryotes have more origins of replication than prokaryotes

Front 17

Telomerase in humans is generally active in which cells?

Back 17

all cells

Front 18

Which sequences of eukaryotic genes code for proteins?

Back 18

Exons

Front 19

Which of the following is one important distinction between prokaryotic and eukaryotic mRNA?

Back 19

Eukaryotic mRNA is generally monocistronic

Front 20

Which of the following defines a sigma (σ) factor?

Back 20

subunit of prokaryotic RNA polymerase that is important in binding to DNA

Front 21

Stop codons are also known as which of the following?

Back 21

nonsense codons

Front 22

Which researchers provided evidence that DNA replication was semiconservative?

Back 22

Matthew Meselson and Franklin Stah

Front 23

Quinolones are medications that target which of the following?

Back 23

DNA GYRASE

Front 24

Which enzyme(s) elongate the lagging strand during replication in eukaryotes?

Back 24

DNA polymerase