1. sn RNA
2. hn RNA
3. 23 S rRNA
4. 5 S rRNA
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following pairs of codons are correctly matched with their function or the signal for the particular amino acid?
1. GUU, GCU – Alanine
2. UAG, UGA – Stop
3. AUG, ACG – Start/methionine
4. UUA, UCA – Leucine
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFormation of peptide bond is
(1) active process
(2) passive process
(3) both active and passive process
(4) neither active nor passive process
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe UTR [untranslated regions] in an mRNA:
(1) Are present only at 5’ end and are not required for efficient translation
(2) Are present only at 3’ end and are not required for efficient translation
(3) Are present at both 5’ and 3’ ends and are not required for efficient translation
(4) Are present at both 5’ and 3’ ends and are required for efficient translation process
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct Match:
1. Ribozyme - Nucleic acid
2. F2 × Recessive parent - Dihybrid cross
3. T.H. Morgan - Transduction
4. G. Mendel - Transformation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following important biochemical reactions in living systems is catalyzed by a ribozyme?
1. Repair of DNA
2. Electron transport chain
3. Formation of peptide bond
4. Organization of MTOC during cell division
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following anticodons will hybridize with the mRNA codon 5’ – AUG – 3’?
1. 5’ – UAC – 3’
2. 5’ – TAC – 3’
3. 3’ – UAC – 5’
4. 3’ – TAC – 5’
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPolypeptides are
(1) dictated by DNA
(2)represented by mRNA
(3)Expresssion of t-RNA
(4)Both 1 and 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyChoose the correct statements –
I. Binding of mRNA to the ribosome is loose and reversible.
II. The ribosome, which is composed of tRNA and proteins, consists of a small and large subunit.
III. Each of the 20 amino acids has a minimum of one specific tRNA molecule.
IV. tRNAMET binds to the first codon (AUG) – this is called the START codon.
V. The second tRNA binds to the second codon so that their attached monosaccharides are next to each other.
VI. The newly formed polypeptide may undergo post-transcriptional modification.
1. I, III and IV
2. II, IV, VI
3. II, V and VI
4. I, V, VI.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology