Description : For production of eukaryotic protein by recombinant DNA technology in bacteria, the template used is (A) Eukaryotic gene (B) hnRNA (C) mRNA (D) All of these
Last Answer : Answer : C
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 : Lactose or its analogues act as positive regulators of lac operon by (A) Attaching to i gene and preventing its expression (B) Increasing the synthesis of catabolite gene activator protein (C) ... holoenzyme (D) Binding to repressor subunits so that the repressor cannot attach to the operator locus
Last Answer : Answer : D
Description : This strategy attempts to gain a competitive advantage by keeping R&D costs, production costs and raw material costs to a minimum in order to compete on the basis of price. The product life ... Life Cycle Focus d. Differentiation strategy with a Product Life Cycle Focus e. Broad Differentiation
Last Answer : c. Cost Leader with Product Life Cycle Focus
Description : Why is mRNA used in protein synthesis? -Biology
Last Answer : answer:
Description : Where does the mRNA get translated in to protein?
Last Answer : Need answer
Description : Translation results in the formation of (A) mRNA (B) tRNA (C) rRNA (D) A protein molecule
Description : Polysemes do not contain (A) Protein (B) DNA (C) mRNA (D) rRNA
Last Answer : Answer : B
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 : mRNA ready for protein synthesis has the poly _______ toil. (A) G (B) A (C) U (D) C
Description : The mRNA ready for protein synthesis has the ________ cap. (A) ATP (B) CTP (C) GTP (D) UTP
Description : Translation is the formation of (A) DNA from DNA (B) mRNA from DNA (C) Protein through mRNA (D) mRNA from pre mRNA
Description : Transcription is the formation of (A) DNA from a parent DNA (B) mRNA from a parent mRNA (C) pre mRNA from DNA (D) protein through mRNA
Description : From DNA the genetic message is transcribed into this compound: (A) Protein (B) mRNA (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 : Okazaki fragment is related to (A) DNA synthesis (B) Protein synthesis (C) mRNA formation (D) tRNA formation
Last Answer : Answer : A
Description : The mushroom poison amanitin is an inhibitor of (A) Protein synthesis (B) mRNA synthesis (C) DNA synthesis (D) Adenosine synthesis
Description : Translation results in a product known as (A) Protein (B) tRNA (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 : The function of a repressor protein in an operon system is to prevent synthesis by binding to (A) The ribosome (B) A specific region of the operon preventing transcription of structural genes (C) The RNA polymerase (D) A specific region of the mRNA preventing translation to protein
Description : Genetic information of nuclear DNA is transmitted to the site of protein synthesis by (A) rRNA (B) mRNA (C) tRNA (D) Polysomes
Last Answer : D
Description : The process of producing a protein from its DNA- and mRNA-coding sequences.
Last Answer : Ans. Gene expression
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
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 role of transfer RNS (IRNA) is to (a) Transfer mRNA from the nucleus to the cytoplasm (b) Carry amino acids from the cytoplasm to the nucleus (c) Carry the newly synthesised protein to its site of function in the cell (d) Transport amino acids to ribosomes
Last Answer : Ans:(d)
Description : The part of the cell which binds to the mRNA during protein systhesis is C A. Golgi bodies B. Lysosomes C. Ribosomes D. Food vacuoles
Last Answer : Ribosome
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.
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 : Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis? (a) Tetracycline (b) Erythromycin (c) Neomycin (d) Streptomycin
Last Answer : (d) Streptomycin
Description : The transforming principle of Pneumococcus as found out by Avery, MacLeod and McCarty was (a) mRNA (b) DNA (c) protein (d) polysaccharide. (
Last Answer : (c) protein
Last Answer : (d) Operon - Structural genes, operator and promoter
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 : .Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis? (a) Tetracycline (b) Erythromycin (c) Neomycin (d) Streptomycin
Last Answer : (c) Neomycin
Description : The transforming principle of Pneumococcus as found out by Avery, MacLeod and McCarty was (a) mRNA (b) DNA (c) protein (d) polysaccharide
Last Answer : (b) DNA
Description : DNA mRNA C Proposed by Protein A B The figure gives an important concept in the genetic implication of DNA. Fill the blanks A, B and C. (a) A-Maurice Wilkins, B-Transcription, C-Translation ... c) A-Erwin Chargaff, B-Translation, C-Replication (d) A-Francis Crick, B-Translation, C-Transcription
Last Answer : (d) A-Francis Crick, B-Translation, C-Transcription
Description : The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C. DNA mRNA Proposed by Protein C A B (a) A - Transcription, B -Translation, C - Francis Crick (b) ... , B - Replication, C - James Watson (d) A - Translation, B - Transcription, C - Ervin Chargaff
Last Answer : (a) A - Transcription, B -Translation, C - Francis Crick
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 : Select the incorrect statement out of the five given below about lac operon when Lactose is present in the medium. a) Gene - A gets transcribed into mRNA which produces β-galactoside permease b) ... polymerase transcribe Z-gene, Y-gene and A-gene e) Allolactose is the inducer of lac operon
Last Answer : Gene – A gets transcribed into mRNA which produces β-galactoside permease b) Inducer-Repressor complex is formed
Description : Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the ... activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.
Last Answer : C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes.
Description : Select the antibiotic which inhibits bacterial protein synthesis by interfering with translocation of elongating peptide chain from acceptor site back to the peptidyl site of the ribosome so that ... chain is prematurely terminated: A. Chloramphenicol B. Erythromycin C. Tetracycline D. Streptomycin
Last Answer : B. Erythromycin
Description : Chloramphenicol inhibits bacterial protein synthesis by: A. Binding to 30S ribosome and inhibiting attachment of aminoacyl tRNA B. Binding to 50S ribosome and preventing peptide bond formation C. Binding to ... chain D. Binding to both 30S and 50S ribosome and inducing misreading of mRNA code
Last Answer : B. Binding to 50S ribosome and preventing peptide bond formation
Description : I live in an old house -- can I squirt aerosol insulation into area behind faceplate before I attach new faceplates?
Last Answer : You are better off installing pre-cut foam. The reason is that aerosol insulation tends to contract and pull away from the studs over time, allowing infiltration again.
Description : RNA transcription is more complex in eukaryotes because it is first made as a primary RNA transcript that contains intron and exon sequences. What kind of modification must occur to produce a mature mRNA?
Last Answer : RNA splicing. Introns must be removed and exons are spliced together to form a mature RNA transcript.
Description : What happens in the cell before protein production can happen the steps in protein synthesis where the finished proteins can go and what those finished proteins can do for the cell).?
Description : Why did industrialists in India begin shifting from yarn to cloth production? -SST 10th
Last Answer : Industrialists in India begin shifting from yarn to cloth production because of the following ways: . When Indian businessmen began setting up industries; they avoided competing with Manchester goods ... production. . Cotton piece goods production in India almost doubled between 1900 and 1912.
Description : Why did Indian industrialists begin to shift from yarn to cloth production ? -SST 10th
Last Answer : Indian industrialists began to shift from yarn to cloth production for the following reasons: (i) The Swadeshi Movement mobilised people to boycott foreign cloth. This encouraged Indian ... local industrialists in the colonies to capture the home market, and consolidate their position.
Description : What year did the petroleum production begin its rapid growth?
Last Answer : Feel Free to Answer
Description : They were traditionally made from bone, quill, ivory or gold and silver, if you could afford such ostentation. Mass production is traced to the American entrepreneur Charles Forster who noticed young ... white birch as raw material because it was tasteless. What business did Forster thus begin?
Last Answer : Toothpicks.