Target DPP Test Contact Number: 9667591930 / 8527521718

1. What is true about tRNA? 7. Which of the following anticodons will

(1) It binds with an amino acid at it 3’ end hybridize with the mRNA codon 5’ – AUG – 3’?
(2) It has five double stranded regions
(3) It has a codon at one end which recognizes 1. 5’ – UAC – 3’
the anticodon on messenger RNA 2. 5’ – TAC – 3’
(4) It looks like clover leaf in the three 3. 3’ – UAC – 5’
dimensional structure. 4. 3’ – TAC – 5’

2. Which of the following set of options is used

in translation?
(1) hnRNA, tRNA, rRNA 8. Which of the following acts as a ribozyme for
(2) mRNA, tRNA, rRNA peptide bond formation in bacteria?
(3) mRNA, tRNA, hnRNA
(1) 5s rRNA
(4) hnRNA, rRNA, tRNA
(2) 23s rRNA
(3) 16s rRNA
3. Protein synthesis takes place in
(4) 5.1s rRNA
(1) cytoplasm
(2) nucleoplasm
(3) Both 1 and 2
(4) none of these 9. The codon for anticodon 3'-UUUA-5' is:
1. 3'-AAU-5'
4. Which of the following is not true statement? 2. 5'-UAAA-3'
(1) In translation, the transfer of genetic 3. 5'-AAAU-3'
information from a polymer of nucleotides to a 4. 3'-UAAU-5'
polymer of amino acids takes place.
(2) complementarity exist between nucleotide 10. The transfer RNA molecule in 3D appears
sequences and amino acids sequences. 1. L-shaped
(3) The basis for transcription and replication is 2. E-shaped
complementarity. 3. V-shaped
(4) A change in nucleic acid is responsible for 4. S-shaped
change in amino acid
11. A complex of ribosomes attached to a single
5. Which is correct about tRNA strand of RNA is known as:
1. It has amino acid acceptor end 1. Okazaki fragment 2. Polysome
2. It has codon loop
3. Polymer 4. Polypeptide
3. It has 2 strands
4. There are 64 tRNA for 64 codons

6. Transcription and translation can be coupled 12. Which of the following pairs of codons
in: encode the same amino acid?
1. AUG and AUC 2. UAA and UAC
(1) Bacteria 3. GUA and GUG 4. UAG and UAC
(2) Yeast
(3) Plants
(4) Animals 13. The site of protein synthesis is the
(1) SER
(2) RER
(3) Ribosomes
(4) Golgi

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 Target DPP Test Contact Number: 9667591930 / 8527521718

14. The untranslated regions (UTRs) 20.

(1) are located on the rRNA
(2) are present only on the 3’ end of the mRNA
(3) are absent in the eukaryotes
(4) are required for efficient translation

15. When protein synthesis terminates, the

initiator amino acid, Methionine, will have a
free _________ group and the last amino acid of
the chain has a free ___________ group.
1. amino, carboxyl
2. carboxyl, amino
3. phosphoryl, hydroxyl
4. hydroxyl, phosphoryl

16. With reference to protein synthesis,

consider the following events The process shown in figure ‘A’ is part of
a. Binding of aminoacyl - tRNA complex with (1) Transcription
mRNA (2) Translation
b. Activation of amino acid (3) Reverse transcription
c. Polypeptide formation (4) Replication
d. Formation of aminoacyl - tRNA complex
What is the correct sequence of the above 21. The process of translation of mRNA to
events in protein synthesis? proteins begins as soon as:
1. b, d, a & c The tRNA is activated and the larger
2. a, b, d & c 1.
subunit of ribosome encounters mRNA
3. d, b, a & c
The smaller subunit of ribosome encounters
4. a, d, b & c 2.
mRNA
17. In translation, the enzyme amino acyl-tRNA 3. The larger subunit of ribosome encounters
synthetase: mRNA
1. synthesizes tRNA Both the subunits join together to bind with
4.
mRNA
2. attaches amino acids to tRNA
3. hydrolyzes excess tRNA molecules
4. helps tRNA synthesize amino acids 22. Select the incorrect statement from the
following
Severo Ochoa enzyme is helpful in
18. Which form of RNA has a structure 1. polymerising RNA with defined sequence in
resembling clover leaf? template – independent manner
1. hn-RNA
Some amino acids are coded by more than
2. m-RNA
2. one codon, hence the code is said to be
3. t-RNA
degenerate
4. r-RNA
Untranslated regions in mRNA are required
3.
19. Anticodon occurs in: for efficient translation process
1. t-RNA A translation unit in mRNA of eukaryotes
4.
2. m-RNA have more than one untranslated regions
3. rRNA
4. DNA

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 Target DPP Test Contact Number: 9667591930 / 8527521718

23. The codons represented as YYY and ZZZ in 26. The ribozyme that catalyses peptide bond
the given figure, respectively, can be: formation in prokaryotes is a part of:
1. the larger subunit of the bacterial ribosome
2. the smaller subunit of the bacterial ribosome
3. the 5’ UTR of the mRNA
4. the 3’ UTR of the mRNA

27. tRNA binds to mRNA through?

1. Anticodon loop
2. TΨC loop
3. Amino acid binding loop
1. 5’-AGU-3’ and 5’-UAC-3’ 4. D loop
2. 3’-AGU-5’ and 3’-UAC-5’
3. 5’-TCA -3’ and 5’-ATG-3’ 28. In the given figure of translation machinery
4. 3’-TCA -5’ and 3’-ATG-5’ of eukaryotes, select the correct labellings for
(i), (ii), (iii) and (iv) :
24. Assertion(A): The amino acids have no
structural specialties to read the code uniquely.
Reason(R): Crick postulated the presence of an
adapter molecule in translation.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the
correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the
correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.

25. Match each item in Column I with one in

Column II and select the correct match from the
codes given:
Column I Column II
A RNA polymerase I P hnRNA
B RNA polymerase II Q 5SrRNA
C RNA polymerase III R 5.8SrRNA 1. (i) Codon, (ii) Anticodon, (iii) tRNA, (iv) 3'end
of mRNA
Codes:
2. (i) Anticodon, (ii) Codon, (iii) 3'end of mRNA ,
A B C
(iv) 5'end of mRNA
1. R P Q 3. (i) Polypeptide chain, (ii) Large subunit of
2. P Q R ribosome, (iii) 5'end of mRNA, (iv) tRNA
3. Q R P 4. (i) Ribozyme, (ii) Polypeptide chain, (iii)
4. R Q P tRNA, (iv) 5'end of tRNA

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 Target DPP Test Contact Number: 9667591930 / 8527521718

29. How many of the given statements

regarding ribosomes are correct? Fill OMR Sheet*
Ribosomes are the cellular factory
I:
responsible for synthesising proteins. *If above link doesn't work, please go to test link
The ribosome consists of structural RNAs from where you got the pdf and fill OMR from
II:
and about 800 different proteins. there
In its inactive state, it exists as two
III: subunits; a large subunit and a small
subunit.
When the small subunit encounters an
IV: mRNA, the process of translation of the
mRNA to protein begins. CLICK HERE to get
1. 1
2. 2
FREE ACCESS for 2
3. 3
4. 4
days of ANY
30. Consider the given two statements:
NEETprep course
In the first phase of translation,
amino acids are activated in the
Assertion (A):
presence of ATP and linked to
their cognate tRNA.
The formation of a peptide
Reason (R):
bond requires energy.

Both (A) and (R) are True and (R) correctly

1.
explains (A).
Both (A) and (R) are True but (R) does not
2.
correctly explain (A).
3. (A) is True; (R) is False
4. Both (A) and (R) are False

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