AP (Advanced Placement) Biology: Questions 878 - 882 of 1309

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Question 878

Question MCQ▾

It is the important component of the RNA polymerase holoenzyme that provides specificity for the precise binding with DNA molecule in eukaryotes

Choices

Choice (5)Response

a.

Subunit

b.

The TFIID complex factor

c.

RNA polymerase I

d.

The chains

e.

The chains

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Question 879

Question MCQ▾

Both viruses and rickettsia

Choices

Choice (5)Response

a.

Both are in between living and non-living

b.

Are obligate intracellular parasites

c.

Spread host to host by sexual contact

d.

Are facultative intracellular parasites

e.

Metabolize resources from soil

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Question 880

Question MCQ▾

Some bacterial plasmids are involved in nitrogen-fixing pathway in a host cell. This type of plasmid is considered as a

Choices

Choice (5)Response

a.

F plasmid

b.

Virulence

c.

Metabolic

d.

R plasmid

e.

Hfr plasmid

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Question 881

Question MCQ▾

Which of the following type of mutation in bacteria restores a phenotype similar to the wild type but do not restore the original genotype?

Choices

Choice (5)Response

a.

Deletion mutation

b.

Reversion mutation

c.

Back mutation

d.

Frame shift mutation

e.

Conditional mutation

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Question 882

Question MCQ▾

Length of one turn of DNA

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

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