All the following statements about tRNA are correct except (A) A given tRNA can be charged with only one particular amino acid (B) The amino acid is recognized by the anticodon of tRNA (C) The amino acid is attached to end of tRNA (D) The anticodon of tRNA finds the complementary codon on mRNA

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Answer :

Answer :  B

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Description : All the following statements about recognition of a codon on mRNA by an anticodon on tRNA are correct except (A) The recognition of the third base of the codon is not very precise (B) ... degeneracy of the genetic code (D) Wobble results in incorporation of incorrect amino acids in the protein

Last Answer : Answer : D

Description : Point out mRna codon and anticodon when tRna is charged with aminocaid hionine -Biology

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Description : Point out mRna codon and anticodon when tRna is charged with aminocaid hionine -Biology

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Description : What happens at the ribosome in the production of a protein? a. mRNA brings the codon b. tRNA brings the anticodon c. the amino acids are linked by polypeptide bonds d. translation e. all the above

Last Answer : c. the amino acids are linked by polypeptide bonds

Description : Amino acid is attached to tRNA at (A) 5’-End (B) 3’-End (C) Anticodon (D) DHU loop

Last Answer : Answer : B

Description : Anticodon sequence are seen in (A) tRNA and transcribed DNA strand (B) tRNA and complementary DNA strand (C) mRNA (D) mRNA and complementary DNA strand

Last Answer : Answer : A

Description : Degeneracy of genetic code implies that (A) Codons do not code for specific amino acid (B) Multiple codons must decode the same amino acids (C) No anticodon on tRNA molecule (D) Specific codon decodes many amino acids

Last Answer : Answer : B

Description : During amino acid activation a(n) A-amino acid is bound to tRNA B- amino acid is bound to mRNA C-methyl group is attached to rRNA D-methyl group is attached to an amino acid

Last Answer : amino acid is bound to tRNA

Description : During amino acid activation a(n) A-amino acid is bound to tRNA B- amino acid is bound to mRNA C-methyl group is attached to rRNA D-methyl group is attached to an amino acid

Last Answer : amino acid is bound to tRNA

Description : The anticodon region is an important part of the structure of (A) rRNA (B) tRNA (C) mRNA (D) hrRNA

Last Answer : Answer : B

Description : Is mRNA a codon or anticodon? -Biology

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Description : Is mRNA a codon or anticodon? -Biology

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Description : mRNA is complementary copy of (A) 5′-3′ strand of DNA+ (B) 3′-5′ strand of DNA (C) Antisense strand of DNA (D) tRNA

Last Answer : Answer : B

Description : mRNA is complementary to the nucleotide sequence of (A) Coding strand (B) Ribosomal RNA (C) tRNA (D) Template strand

Last Answer : Answer : A

Description : All the following statements about charging of tRNA are correct except (A) It is catalysed by amino acyl tRNA synthetase (B) ATP is converted into ADP and Pi in this reaction (C) The enzyme recognizes the tRNA and the amino acid (D) There is a separate enzyme for each tRNA

Last Answer : Answer : B

Description : Anticodon is an unpaired triplet of bases in an exposed position of (a) tRNA (b) mRNA (c) rRNA (d) both (b) and (c).

Last Answer : (b) mRNA

Description : Anticodon occurs in (a) tRNA (b) mRNA (c) rRNA (d) DNA.

Last Answer : b) mRNA

Description : Anticodon is an unpaired triplet of bases in an exposed position of (a) tRNA (b) mRNA (c) rRNA (d) both (b) and (c).

Last Answer : tRNA

Description : Anticodon occurs in (a) tRNA (b) mRNA (c) rRNA (d) DNA.

Last Answer : (a) tRNA

Description : ATP is required for (A) Fusion of 40S and 60S of ribosome (B) Accommodation tRNA amino acid in a site of ribosome (C) Movement of ribosome along mRNA (D) formation of tRNA amino acid complex

Last Answer : Answer : D

Description : GTP is not required for (A) Capping L of mRNA (B) Fusion of 40S and 60S of ribosome (C) Accommodation of tRNA amino acid (D) Formation of tRNA amino acid complex

Last Answer : Answer : D

Description : Initiation of protein synthesis begins with binding of (A) 40S ribosomal unit on mRNA (B) 60S ribosomal unit (C) Charging of tRNA with specific amino acid (D) Attachment of aminoacyl tRNA on mRNA

Last Answer : Answer : A

Description : In the process of elongation of chain binding of amino acyl tRNA to the A site requires (A) A proper codon recognition (B) GTP (C) EF-II (D) GDP

Last Answer : Answer : A

Description : tRNA has (A) Clover leaf structure (B) anticodon arm (C) poly ‘A’ tay 3’ (D) Cap at 5’ end

Last Answer : Answer : A

Description : .The first phase of translation is (a) binding of mRNA to ribosome (b) recognition of DNA molecule (c) aminoacylation of tRNA (d) recognition of an anti-codon

Last Answer : (d) recognition of an anti-codon.

Description : The first phase of translation is (a) binding of mRNA to ribosome (b) recognition of DNA molecule (c) aminoacylation of tRNA (d) recognition of an anti-codon.

Last Answer : c) aminoacylation of tRNA

Description : The nucleophilic attack on the esterified carboxyl group of the peptidyl-tRNA occupying the P site and the α-amino group of the new amino acyl tRNA, the number of ATP required by the amino acid on the charged tRNA is (A) Zero (B) One (C) Two (D) Four

Last Answer : Answer : A

Description : eIF-1A and eIF-3 are required (A) For binding of amino acyl tRNA to 40 S ribosomal subunit (B) For binding of mRNA to 40 S ribosomal subunit (C) For binding of 60 S subunit to 40 S subunit (D) To prevent binding of 60 S subunit to 40 S subunit

Last Answer : Answer : D

Description : Eukaryotic initiation factors 4A, 4B and 4F bind to (A) 40 S ribosomal subunit (B) 60 S ribosomal subunit (C) mRNA (D) Amino acyl tRNA

Last Answer : Answer : C

Description : The newly entering amino acyl tRNA into A site requires (A) EF-II (B) Ribosomal RNA (C) mRNA (D) EF-I

Last Answer : Answer : D

Description : All of the following statements about nonsense codons are true except (A) They do not code for amino acids (B) They act as chain termination signals (C) They are identical in nuclear and mitochondrial DNA (D) They have no complementary anticodons

Last Answer : Answer : C

Description : Which of the following statement(s) is/are true concerning translation of the mRNA message to protein synthesis? a. An adaptor molecule, tRNA, recognizes specific nucleic acid bases and unites them ... and the free amino acid occurs in the free cytoplasm d. Complete protein synthesis takes hours

Last Answer : Answer: a, b The synthesis of protein involves conversion from a four-letter nucleotide language to one of 20 chemically distinct amino acids. This process is referred to as ... translation and be moving down the mRNA molecules simultaneously, thus increasing the rate of protein synthesis

Description : The RNA that pick up specific amino acid from amino acid pool in the cytoplasm to ribosome during protein synthesis is called (a) rRNA (b) RNA (c) mRNA (d) tRNA.

Last Answer : a) rRNA

Description : Amino acid sequence, in protein synthesis is decided by the sequence of (a) rRNA (b) tRNA (c) mRNA (d) cDNA.

Last Answer : (b) tRNA

Description : The RNA that pick up specific amino acid from amino acid pool in the cytoplasm to ribosome during protein synthesis is called (a) rRNA (b) RNA (c) mRNA (d) tRNA

Last Answer : tRNA

Description : .Amino acid sequence, in protein synthesis is decided by the sequence of (a) rRNA (b) tRNA (c) mRNA (d) cDNA.

Last Answer : (c) mRNA

Description : The interaction between the mRNA and tRNA determined the position of amino acid in a polypeptide sequence. This is called the A- stagerivity B- Wobble hypothesis C- Promiscuity D- adaptor hypothesis

Last Answer : adaptor hypothesis

Description : In RNA moleule ‘Caps’ (A) Allow tRNA to be processed (B) Are unique to eukaryotic mRNA (C) Occur at the 3’ end of tRNA (D) Allow correct translation of prokaryotic mRNA

Last Answer : Answer : B

Description : Elongation of a peptide chain involves all the following except (A) mRNA (B) GTP (C) Formyl-Met-tRNA (D) Tu, TS and G factors

Last Answer : Answer : C

Description : In tRNA molecule, the anticodon arm possesses (A) 5 Base pairs (B) 7 Base pairs (C) 8 Base pairs (D) 10 Base pairs

Last Answer : Answer : A

Description : Although each specific tRNA differs from the others in its sequence of nucleotides, all tRNA molecules contain a base paired stem that terminates in the sequence CCA at (A) 3′ Termini (B)5′ Termini (C) Anticodon arm (D) 53 ′′ -Termini

Last Answer : Answer : A

Description : eIF-4 B (A) Binds to 3’ chain initiation codon on mRNA (B) Binds to 3’ end of mRNA (C) Binds to 5’ end of mRNA (D) Unwinds mRNA near its 5’ end

Last Answer : Answer : D

Description : All of the following statements about post-transcriptional processing of tRNA are true except (A) Introns of some tRNA precursors are removed (B) CCA is added at 3′ end (C) 7-Methylguanosine triphosphate cap is added at 5′ end (D) Some bases are methylated

Last Answer : Answer : C

Description : AUG, the only identified codon for methionine is important as (A) A releasing factor for peptide chains (B) A chain terminating codon (C) Recognition site on tRNA (D) A chain initiating codon

Last Answer : Answer : D

Description : What is the difference between a codon and an anticodon?

Last Answer : A: A codon is a sequence of three nucleotides in mRNA that codes for a specific amino acid, while an anticodon is a sequence of three nucleotides in tRNA that binds to a specific codon and brings the corresponding amino acid to the ribosome during protein synthesis.

Description : What is the difference between a codon and an anticodon?

Last Answer : A: A codon is a sequence of three nucleotides that specifies a particular amino acid in a protein, while an anticodon is a sequence of three nucleotides on a tRNA molecule that is complementary to a codon on the mRNA molecule.

Description : What is the difference between a codon and an anticodon?

Last Answer : A: A codon is a sequence of three nucleotides on mRNA that codes for a specific amino acid, while an anticodon is a sequence of three nucleotides on tRNA that is complementary to the codon on mRNA.

Description : What is a codon and anticodon? -Biology

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Description : Which anticodon pairs with the codon gau? -Biology

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Description : What is a codon and anticodon? -Biology

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