Homework answers / question archive / University of Central Florida FIL 1000 Ch 10 Quiz 1)DNA is synthesized from the 3' end to the 5' end in which of the following processes? Select one: a

University of Central Florida FIL 1000 Ch 10 Quiz 1)DNA is synthesized from the 3' end to the 5' end in which of the following processes? Select one: a

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University of Central Florida

FIL 1000

Ch 10 Quiz

1)DNA is synthesized from the 3' end to the 5' end in which of the following processes? Select one:

a.            Replication of DNA

b.            Replication of RNA

c.             Transcription of RNA from DNA d. none of these

 

2.            E. coli replication on the lagging strand Select one:

a.            is carried out by DNA polymerase I

b.            is initially synthesized as Okazaki fragments

c.             is synthesized continuously

d.            has this DNA strand synthesized in a 3' → 5' direction

 

3.            Eukaryotes need more types of DNA polymerases than bacteria because Select one:

a.            the DNA-containing organelles have their own DNA polymerases.

b.            they have linear DNA , which is harder to replicate than circular DNA.

c.             because they have more kinds of bases in their DNA than the four used by prokaryotes.

d.            That's not true; eukaryotes do not have more types of DNA polymerases.

 

4.            How do origins of replication differ in eukaryotes and prokaryotes? Select one:

a.            Eukaryotes have several origins, while prokaryotes typically have one.

b.            Prokaryotes have several origins, while eukaryotes typically have one.

c.             Only prokaryotes have origins of replication.

d.            None of these.

 

5.            How do the Okazaki fragments of eukaryotes and prokaryotes compare? Select one:

a.            The Okazaki fragments are much longer in eukaryotes than in prokaryotes. b. The Okazaki fragments are much shorter in eukaryotes than in prokaryotes.

c. The Okazaki fragments of eukaryotes are on the leading strand, rather than the lagging strand.

d. There is little to no difference between the Okazaki fragments of eukaryotes and prokaryotes.

 

 

6.            In prokaryotic replication, all DNA polymerases are capable of all of the following tasks except:

Select one:

a.            Reading a template strand and putting the complementary base in the correct position

b.            Polymerizing DNA in the 5' to 3' direction

c.             Excising DNA in the 3' to 5' direction d. Excising DNA in the 5' to 3' direction

 

e. All of these are capabilities of all DNA polymerases

 

7.            In the original Central Dogma of biology, the ordinary flow of genetic information is: Select one:

a.            DNA → RNA → Protein

b.            RNA → DNA → Protein

c.             Protein → RNA → DNA

d.            DNA → Protein → RNA.

e.            None of these

 

8.            Semiconservative replication implies that Select one:

a.            each of the new double stranded DNA molecules contains one of the original intact strands and one completely new strand.

b.            one of the new double stranded DNA molecules contains both of the original strands, while the other contains two new strands.

c.             each of the new double stranded DNA molecules contains strands that are composed of segments of original and newly synthesized material.

d.            None of these.

 

9.            Which of the following best describes the process of DNA replication in a prokaryote? Select one:

a.            Replication begins at a unique site and proceeds in one direction all the way around a typically circular chromosome.

b.            Replication begins at a unique site and proceeds in two directions, meeting about halfway around a typically circular chromosome.

c.             Replication begins at multiple sites, spreading outward until the entire typically circular chromosome is replicated.

d.            Replication begins at multiple sites, spreading outward until the entire typically linear chromosome is replicated.

 

10.          Which of the following is a characteristic of eukaryotic, but not prokaryotic, DNA replication?

Select one:

a.            Topoisomerases are required.

b.            A primer is needed on the lagging strand only. c. Histone biosynthesis must take place.

d. There is only one origin of replication.