19th Dec Molecular Basis of Inheritance Quiz 5 – Punjab Meritorious School Preparation Portal

Welcome to your 19th Dec Molecular Basis of Inheritance Quiz 5 CBT TEST

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Which genetic codon has dual functions?

UUU

AUG

UGG

Both (1) and (3)

In tailing, about ________ adenylate residues are added at 3'-end in a template independent manner on hnRNA.

1000-2000

10-15

200-300

3000-3500

DHU loop in tRNA is referred as

Aminoacyl tRNA synthetase binding loop

Ribosomal binding loop

Anticodon loop

Both (2) and (3)

Who coined the term 'genetic code"?

H.G. Khorana

Marshall Warren Nirenberg

George Gamow

Shine Dalgamo

In capping, __________ is added to 5' end of

Unusual nucleotide, rRNA

Methyl guanosine triphosphate, hnRNA

Guanosine monophosphate, hnRNA

Unusual nucleotide, tRNA

During RNA splicing, which one of the following is removed?

Primary transcripts

Exons

Introns

Both (2) & (3)

Select the ambiguous codon

GUG

AUG

UUU

AAG

Select the incorrect option w.r.t salient features of genetic code,

One codon overlaps the next codon

The codes are nearly universal

The codons are read in mRNA in a contiguous fashion

The codons are triplet

Which one of following factors is not a part of prokaryotic RNA polymerase?

β

Ʃ

σ

ρ

In eukaryotes, RNA polymerase III transcribes

tRNA

18S rRNA

5S rRNA

Both (1) & (3)

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