Cell Structure and Function MCQ Quiz: GKFix - Bridge of Knowledge - Page 45

Question 221

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What is the function of ligase in DNA replication?

Unwinds DNA
Adds nucleotides
Proofreads DNA
Joins DNA fragments

Question 222

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What is the role of primase in DNA replication?

Repairs DNA
Seals gaps
Unwinds DNA
Synthesizes RNA primer

Question 223

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What is the function of DNA helicase during replication?

Adds nucleotides
Proofreads DNA
Joins Okazaki fragments
Separates DNA strands

Question 224

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Which of the following is a basic amino acid?

Valine
Alanine
Serine
Lysine

Question 225

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What is the main function of antibodies?

Store energy
Transport nutrients
Defend against pathogens
Regulate hormones