Description : Polysomes lack in (A) DNA (B) mRNA (C) rRNA (D) tRNA
Last Answer : Answer : A
Description : From DNA the genetic message is transcribed into this compound: (A) Protein (B) mRNA (C) tRNA (D) rRNA
Last Answer : Answer : B
Description : Blue print for genetic information residues in (A) mRNA (B) tRNA (C) rRNA (D) DNA
Last Answer : Answer : D
Description : Which of the following act as the blueprint or template for the process of protein synthesis that takes place on ribosomes? A.rRNA B.DNA C.tRNA D.mRNA
Last Answer : mRNA
Description : Ciprofloxacin inhibits the synthesis of (A) DNA (B) mRNA (C) tRNA (D) rRNA
Description : Novobicin inhibits the synthesis of (A) DNA (B) mRNA (C) tRNA (D) rRNA
Description : Okazaki pieces are formed during the synthesis of (A) mRNA (B) tRNA (C) rRNA (D) DNA
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 : Heterogeneous nuclear RNA is the precursor of (A) mRNA (B) rRNA (C) tRNA (D) None of these
Description : Translation results in the formation of (A) mRNA (B) tRNA (C) rRNA (D) A protein molecule
Description : Translation results in a product known as (A) Protein (B) tRNA (C) mRNA (D) rRNA
Description : Codons are in (A) DNA (B) mRNA (C) tRNA (D) rRNA
Description : Anticodons are present on (A) Coding strand of DNA (B) mRNA (C) tRNA (D) rRNA
Last Answer : Answer : C
Description : The number of adenine and thymine bases is equal in (A) DNA (B) mRNA (C) tRNA (D) rRNA
Description : Codons are present in (A) Template strand of DNA (B) mRNA (C) tRNA (D) rRNA
Description : Alkalis cannot hydrolyse (A) mRNA (B) tRNA (C) rRNA (D) DNA
Description : The genetic code operates via (A) The protein moiety of DNA (B) The base sequences of DNA (C) The nucleotide sequence of mRNA (D) The base sequence of tRNA
Description : Okazaki fragment is related to (A) DNA synthesis (B) Protein synthesis (C) mRNA formation (D) tRNA formation
Description : Which one of the following is wrongly matched? (a) Transcription - Writing information from DNA to tRNA. (b) Translation - Using information in mRNA to make protein. (c) Repressor protein - Binds to operator to stop enzyme synthesis. (d) Operon - Structural genes, operator and promoter.
Last Answer : (c) Repressor protein - Binds to operator to stop enzyme synthesis.
Last Answer : (d) Operon - Structural genes, operator and promoter
Description : Removal of RNA polymerase III from nucleoplasm will affect the synthesis of (a) tRNA (b) hnRNA (c) mRNA (d) rRNA.
Last Answer : (a) tRNA
Description : Removal of RNA polymerase III from nucleoplasm will affect the synthesis of (1) rRNA (2) tRNA (3) hnRNA (4) mRNA
Last Answer : (2) tRNA
Description : Genetic information originates from (A) Cistron of DNA (B) Codons of mRNA (C) Anticodons of tRNA (D) Histones of nucleoproteins
Description : Anticodon occurs in (a) tRNA (b) mRNA (c) rRNA (d) DNA.
Last Answer : b) mRNA
Description : The anticodon region is an important part of the structure of (A) rRNA (B) tRNA (C) mRNA (D) hrRNA
Description : Among the different types of RNA, which one has the highest M.W.? (A) mRNA (B) rRNA (C) yeast RNA (D) tRNA
Description : Nonsense codons are present on (A) mRNA (B) tRNA (C) rRNA (D) None of these
Description : Mammalian RNA polymerase III synthesises (A) rRNA (B) mRNA (C) tRNA (D) hnRNA
Description : Mammalian RNA polymerase I synthesises (A) mRNA (B) rRNA (C) tRNA (D) hnRNA
Description : The smallest RNA among the following is (A) rRNA (B) hnRNA (C) mRNA (D) tRNA
Description : Methylated purines and pyrimidines are characteristically present in (A) mRNA (B) hnRNA (C) tRNA (D) rRNA
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
Description : Polysemes do not contain (A) Protein (B) DNA (C) mRNA (D) rRNA
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
Description : Tetracylin prevents synthesis of polypeptide by (A) Blocking mRNA formation from DNA (B) Releasing peptides from mRNA-tRNA complex (C) Competing with mRNA for ribosomal binding sites (D) Preventing binding of aminoacyl tRNA
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 : Which form of RNA has a structure resembling clover leaf? (a) rRNA (b) hnRNA (c) mRNA (d) tRNA
Description : Which of the following RNAs should be most abundant in animal cell? (a) tRNA (b) mRNA (c) miRNA (d) rRNA
Last Answer : (d) rRNA
Description : What does the positive strand in double stranded RNA viruses stands for? A- rRNA B- tRNA C- .mRNA D- None of these
Last Answer : .mRNA
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 : Biochemically the ribosome consists of _______________ and some 50 structural . (A) mRNA, Carbohydrates (B) tRNA, lipids (C) mRNA, Proteins (D) rRNA, Proteins
Last Answer : (D) rRNA, Proteins
Description : An important step in protein synthesis is transcription. Which of the following statement(s) is/are true concerning this process? a. The first step in gene transcription involves separating the double helix ... nucleus to the cytoplasm d. Only one protein can be produced from an initial mRNA strand
Last Answer : Answer: c Transcription of a gene begins at an initiation site associated with a specific DNA sequence, termed a promoter region. After binding to DNA, the RNA polymerase opens up a short ... different proteins from the same gene. mRNA is exported from the nucleus only after processing is complete