Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

When was bacteriophage discovered?

A. t1915-1917
B. t1980
C. t1819-1821
D. t2000
Answer» B. t1980
2.

What is the role of N and Q genes?

A. tPositive regulation
B. tNegative regulation
C. tTranscription initiation
D. tTranscription termination
Answer» B. tNegative regulation
3.

The cI gene is of what type?

A. tInducer
B. tPromoter
C. tRepressor
D. tSilent gene
Answer» D. tSilent gene
4.

What is the function of late gene regulation?

A. tPackaging DNA
B. tHost lysis
C. tHost infection
D. tReplication
Answer» B. tHost lysis
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