Explore topic-wise MCQs in Cytogenetics.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.

1.

In the consensus sequence 5′-AG/GUAAGU–intron–YNCURAC–YnNAG/G-3′ Y could be ______

A. Base A
B. Base G
C. Base C
D. Base T
Answer» D. Base T
Discussion
2.

Splicing concensus sequence is ___________

A. Exon/GU–intron–AG/exon
B. Exon/UG–intron–AT/exon
C. Exon/GU–intron–GA/exon
D. Exon/AU–intron–CG/exon
Answer» B. Exon/UG–intron–AT/exon
Discussion
3.

Which of the following corresponding to the same gene will you expect to be the shortest?

A. DNA
B. hnRNA
C. cDNA
D. mRNA
Answer» D. mRNA
Discussion
4.

In an experiment you try to hybridize a Dna single strand with a mature RNA. You observe loops being formed. These loops have ____________

A. Dna
B. RNA
C. HIstone octamer
D. Histone H1
Answer» B. RNA
Discussion
5.

CBP acts as a(an)_______________

A. Enzyme
B. Adaptor
C. Catalyst
D. Suicide enzyme
Answer» D. Suicide enzyme
Discussion
6.

The post transcriptional modifications are done after the transcript is completely transcribed. State whether the statement is true or false.

A. True
B. False
Answer» C.
Discussion
7.

Which is the 1st enzyme in capping?

A. Guanyltransferase
B. RNA 5’ triphosphatase
C. N7G methytransferase
D. Guanul transferase
Answer» E.
Discussion
8.

Which nucleotide is present in the 5’ cap?

A. ADP
B. GDP
C. CDP
D. UDP
Answer» C. CDP
Discussion
9.

Which RNA transcript would be capped by the capping enzymes in vitro mixture of RNA?

A. Pol II transcripts
B. Pol I and Pol III transcripts
C. Pol I transcripts
D. Pol I, Pol II and Pol III transcripts
Answer» E.
Discussion
10.

If the events in post transcriptional modification are listed as- i) Polyadenylation ii) capping iii) splicingWhat would be the correct sequence?

A. i->ii->iii
B. iii->ii->i
C. i->iii->ii
D. ii->i->iii
Answer» E.
Discussion