Cell Biology Practice Test 177

Genomes and their Evolution Quiz Questions and Answers PDF - 177

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Genomes and their Evolution Questions and Answers PDF Download: Quiz 177

MCQ 881: What percentage of DNA in humans are introns?

A) 30

B) 20

C) 60

D) 39

MCQ 882: How many DNA molecules are present in the nucleus of a single human cell?

A) 23

B) 45

C) 46

D) 12

MCQ 883: Which of the following enzymes unwinds and separates the DNA strands during replication?

A) helicase

B) proteases

C) topoisomerase

D) telomerase

MCQ 884: How many types of RNA polymerase is present in prokaryotes?

A) 1

B) 2

C) 3

D) 4

MCQ 885: Which of the following structures of 30 nm fiber is present in the 300 nm fiber?

A) sheets

B) looped domains

C) helix

D) hairpin loops

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