Question 1

Monocistronic mRNA occurs in domain________ , while polycistronic mRNA occurs in domain________ .

Accepted Answer

The answer of Monocistronic mRNA occurs in domain________ , while...

Question 2

The assemblage of proteins that serve as a binding site for spindle fibers and bind to chromosomal DNA at the centromere region are called

Accepted Answer

A)   telomeres.
B)   mitotic spindle complexes.
C)   chromatids.
D)   kinetochore complexes.

Question 3

Explain the necessity and function of telomeres and telomerase.

Accepted Answer

Eukaryotic linear chromosomes have repet...

Question 4

Compare and contrast the activities of "dicers" and "slicers."

Accepted Answer

Both destroy RNA transcripts and therefo...

Question 5

The complex of DNA plus histones is known as _________ and when highly condensed is called________ .

Accepted Answer

chromatin ...

Question 6

Which statement is TRUE?

Accepted Answer

A)   Proteins are not associated with either prokaryotic or eukaryotic chromosomes.
B)   Proteins are equally associated with prokaryotic and eukaryotic chromosomes.
C)   Large amounts of protein are bound to eukaryotic DNA in a very regular fashion, whereas proteins are absent from prokaryotic DNA.
D)   Large amounts of protein are bound to prokaryotic DNA in a very regular fashion, whereas proteins are absent from eukaryotic DNA.

Question 7

The antibiotic rifampicin inhibits RNA polymerase from which domain?

Accepted Answer

A)   Archaea
B)   Bacteria
C)   Eukarya
D)   Rifampicin does not inhibit RNA polymerase from any of these domains.

Question 8

The guanine- rich sequence that can base pair with the 3' end of a complementary RNA present in telomerase is found on the________ strand of DNA.

Accepted Answer

The answer of The guanine- rich sequence that can base...

Question 9

The________ is ________that contains both introns and exons.

Accepted Answer

primary tr...

Question 10

All organisms possess multiple DNA polymerases in part due to their functional diversity that all cells require.

Accepted Answer

A) True 
 B)False

Question 11

Protein- encoding genes are often split into two or more coding regions called________ and noncoding regions known as________ .

Accepted Answer

A)   introns / exteins
B)   exons / introns
C)   exons / inteins
D)   introns / exons

Question 12

Histones are universally present in prokaryotic cells.

Accepted Answer

A) True 
 B)False

Question 13

Regulation of transcription in Archaea is more similar to that which occurs in eukaryotes than in bacteria.

Accepted Answer

A) True 
 B)False

Question 14

Prokaryotes have almost no introns. What is the significance of this?

Accepted Answer

A lack of introns for prokaryotes means ...

Question 15

Suppose you are comparing the protein- encoding DNA from two species. In one species, 92% of the DNA encodes proteins, while in the second species, only 7.5% of the DNA encodes proteins. To what domain does each species belong? Explain your answer fully.

Accepted Answer

Eukaryotes have the lowest per...

Question 16

Archaeal introns are excised by

Accepted Answer

A)   a specific endoribonuclease.
B)   a ribozyme.
C)   the spliceosome.
D)   restriction endonucleases.

Question 17

Explain why a mutation in the gene that encodes telomerase would be a lethal mutation.

Accepted Answer

The function of the telomerase enzyme is...

Question 18

Archaea contain ________RNA polymerase(s), which have roughly three times more subunits than those found in ________.

Accepted Answer

The answer of Archaea contain ________RNA polymerase(s), which have roughly...

Question 19

Bacteria use DNA polymerases of family C as their _________ , whereas DNA polymerases of families A and B are used mostly in _________ .

Accepted Answer

main repli...

Question 20

________is the enzyme that introduces positive supercoils into DNA that is found in the________domain(s).

Accepted Answer

Reverse gy...

Exam 7: Archael and Eukaryotic Molecular Biology

Explain the necessity and function of telomeres and telomerase.

Correct AnswerverifiedEukaryotic linear chromosomes have repet...View AnswerShow Answer

The assemblage of proteins that serve as a binding site for spindle fibers and bind to chromosomal DNA at the centromere region are called

Correct AnswerverifiedShow Answer

Archaeal introns are excised by

Correct AnswerverifiedShow Answer

Regulation of transcription in Archaea is more similar to that which occurs in eukaryotes than in bacteria.

Correct AnswerverifiedShow Answer

Bacteria use DNA polymerases of family C as their _________ , whereas DNA polymerases of families A and B are used mostly in _________ .

Correct Answerverifiedmain repli...View AnswerShow Answer

Suppose you are comparing the protein- encoding DNA from two species. In one species, 92% of the DNA encodes proteins, while in the second species, only 7.5% of the DNA encodes proteins. To what domain does each species belong? Explain your answer fully.

Correct AnswerverifiedEukaryotes have the lowest per...View AnswerShow Answer

Monocistronic mRNA occurs in domain________ , while polycistronic mRNA occurs in domain________ .

Correct AnswerverifiedShow Answer

Prokaryotes have almost no introns. What is the significance of this?

Correct AnswerverifiedA lack of introns for prokaryotes means ...View AnswerShow Answer

The complex of DNA plus histones is known as _________ and when highly condensed is called________ .

Correct Answerverifiedchromatin ...View AnswerShow Answer

Which statement is TRUE?

Correct AnswerverifiedShow Answer

Histones are universally present in prokaryotic cells.

Correct AnswerverifiedShow Answer

The guanine- rich sequence that can base pair with the 3' end of a complementary RNA present in telomerase is found on the________ strand of DNA.

Correct AnswerverifiedShow Answer

Archaea contain ________RNA polymerase(s), which have roughly three times more subunits than those found in ________.

Correct AnswerverifiedShow Answer

All organisms possess multiple DNA polymerases in part due to their functional diversity that all cells require.

Correct AnswerverifiedShow Answer

Protein- encoding genes are often split into two or more coding regions called________ and noncoding regions known as________ .

Correct AnswerverifiedShow Answer

Explain why a mutation in the gene that encodes telomerase would be a lethal mutation.

Correct AnswerverifiedThe function of the telomerase enzyme is...View AnswerShow Answer

Compare and contrast the activities of "dicers" and "slicers."

Correct AnswerverifiedBoth destroy RNA transcripts and therefo...View AnswerShow Answer

The________ is ________that contains both introns and exons.

Correct Answerverifiedprimary tr...View AnswerShow Answer

________is the enzyme that introduces positive supercoils into DNA that is found in the________domain(s).

Correct AnswerverifiedReverse gy...View AnswerShow Answer

The antibiotic rifampicin inhibits RNA polymerase from which domain?

Correct AnswerverifiedShow Answer

Correct Answer
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Eukaryotic linear chromosomes have repet...
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Bacteria use DNA polymerases of family C as their _ , whereas DNA polymerases of families A and B are used mostly in _ .

Correct Answer
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main repli...
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Eukaryotes have the lowest per...
View Answer

Monocistronic mRNA occurs in domain , while polycistronic mRNA occurs in domain .

Correct Answer
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A lack of introns for prokaryotes means ...
View Answer

The complex of DNA plus histones is known as _ and when highly condensed is called .

Correct Answer
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chromatin ...
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Archaea contain RNA polymerase(s), which have roughly three times more subunits than those found in .

Correct Answer
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Protein- encoding genes are often split into two or more coding regions called and noncoding regions known as .

Correct Answer
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The function of the telomerase enzyme is...
View Answer

Correct Answer
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Both destroy RNA transcripts and therefo...
View Answer

The is that contains both introns and exons.

Correct Answer
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primary tr...
View Answer

is the enzyme that introduces positive supercoils into DNA that is found in thedomain(s).

Correct Answer
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Reverse gy...
View Answer

Correct Answer
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