Explore topic-wise MCQs in Molecular Biology.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Molecular Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

The simpler the organism the more likely they are to have transposable elements.

A. True
B. False
Answer» C.
2.

Repeated DNA can be referred to as junk DNA.

A. True
B. False
Answer» C.
3.

Genome – wide repeat unit are generally transposable elements.

A. True
B. False
Answer» B. False
4.

Which of these factors contribute to a decrease in gene density?

A. Operon
B. Intergenic sequence
C. Exon sequence
D. Cell size
Answer» C. Exon sequence
5.

REPEATED_DNA_CAN_BE_REFERRED_TO_AS_JUNK_DNA_.?$

A. True
B. False
Answer» C.
6.

The_simpler_the_organism_the_more_likely_they_are_to_have_transposable_elements_.$

A. True
B. False
Answer» C.
7.

Genome – wide repeat unit are generally transposable elements ___________?#

A. True
B. False
Answer» B. False
8.

With respect to microsatellite DNA which of the following is correct?

A. Tandem repeats
B. Dinucleotide repeats
C. 100 bp units
D. Inaccurate duplicating
Answer» D. Inaccurate duplicating
9.

Which of the following is responsible for the formation of Pseudogenes?

A. Polymerase
B. Reverse transcriptase
C. Klenow fragment
D. Wrong primer
Answer» C. Klenow fragment
10.

Which of the following is not a character of unique Intergenic DNA?

A. Mutant genes
B. Pseudogenes
C. Palindromes
D. Nonfunctional gene fragments
Answer» D. Nonfunctional gene fragments
11.

What do you think is the requirement of Intergenic DNA in higher organisms?

A. Just genetic load
B. To avoid viable mutations
C. Helps in regulation of transcription
D. Helps in genome organization
Answer» C. Helps in regulation of transcription
12.

Which of these factors contribute in decrease in gene density?

A. Operon
B. Intergenic sequence
C. Exon sequence
D. Cell size
Answer» C. Exon sequence
13.

What is the correct order for increasing gene density?

A. Bacteria, Virus, Fruit fly, Human
B. Fruit fly, Bacteria, Virus, Human
C. Human, Fruit fly, Bacteria, Virus
D. Virus, Bacteria, Fruit fly, Human
Answer» D. Virus, Bacteria, Fruit fly, Human
14.

Which of the following is not a part of a gene?

A. Ori
B. Promoter
C. Operon
D. Terminator
Answer» B. Promoter