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

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
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Translation is the formation of (A) DNA from DNA (B) mRNA from DNA (C) Protein through mRNA (D) mRNA from pre mRNA

Description : Translation is the formation of (A) DNA from DNA (B) mRNA from DNA (C) Protein through mRNA (D) mRNA from pre mRNA

Last Answer : Answer : B

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 of DNA by an enzyme known as DNA polymerase b. The initial product of DNA transcription is called heterogeneous nuclear RNA which codes directly for proteins c. After processing is complete, the mRNA is exported from the nucleus to the cytoplasm d. Only one protein can be produced from an initial mRNA strand

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

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.

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.

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.

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 : (d) Operon - Structural genes, operator and promoter

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 (b) A-James Watson, B-Replication, C-Extension (c) A-Erwin Chargaff, B-Translation, C-Replication (d) A-Francis Crick, B-Translation, C-Transcription

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

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) A - Translation, B - Extension, C - Rosalind Franklin (c) A - Transcription, B - Replication, C - James Watson (d) A - Translation, B - Transcription, C - Ervin Chargaff

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

Okazaki fragment is related to (A) DNA synthesis (B) Protein synthesis (C) mRNA formation (D) tRNA formation

Description : Okazaki fragment is related to (A) DNA synthesis (B) Protein synthesis (C) mRNA formation (D) tRNA formation

Last Answer : Answer : A

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 : 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

Last Answer : Answer : B

Which strand of mRNA would be made during transcription using the DNA strand shown below AGC GCT?

Description : Which strand of mRNA would be made during transcription using the DNA strand shown below AGC GCT?

Last Answer : Transcription is the process whereby DNA is used as a template to form a complementary RNA strand. This is the first stage of protein production or the flow of information within a cell. ... denatured, uncoupling the two complementary strands and allowing the template strand to be accessed by the e

During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG then the nucleotide sequence in the mRNA would be (a) TATGC (b) TCTGG (c) UAUGC (d) UATGC.

Description : During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG then the nucleotide sequence in the mRNA would be (a) TATGC (b) TCTGG (c) UAUGC (d) UATGC.

Last Answer : (c) UAUGC

During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG then the nucleotide sequence in the mRNA would be (a) TATGC (b) TCTGG (c) UAUGC (d) UATGC.

Description : During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG then the nucleotide sequence in the mRNA would be (a) TATGC (b) TCTGG (c) UAUGC (d) UATGC.

Last Answer : (c) UAUGC

What is the process called of making a mRNA copy of DNA? a. translation. b. transcription. c. transposon d. transformation

Description : What is the process called of making a mRNA copy of DNA? a. translation. b. transcription. c. transposon d. transformation

Last Answer : b. transcription.

Translation results in the formation of (A) mRNA (B) tRNA (C) rRNA (D) A protein molecule

Description : Translation results in the formation of (A) mRNA (B) tRNA (C) rRNA (D) A protein molecule

Last Answer : Answer : D

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 : 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

Last Answer : Answer : D

In the process of transcription, the flow of genetic information is from (A) DNA to DNA (B) DNA to protein (C) RNA to protein (D) DNA to RNA

Description : In the process of transcription, the flow of genetic information is from (A) DNA to DNA (B) DNA to protein (C) RNA to protein (D) DNA to RNA

Last Answer : Answer : D

In the process of transcription, the flow of genetic information is from (A) DNA to DNA (B) DNA to protein (C) RNA to protein (D) DNA to RNA

Description : In the process of transcription, the flow of genetic information is from (A) DNA to DNA (B) DNA to protein (C) RNA to protein (D) DNA to RNA

Last Answer : Answer : D

Polysemes do not contain (A) Protein (B) DNA (C) mRNA (D) rRNA

Description : Polysemes do not contain (A) Protein (B) DNA (C) mRNA (D) rRNA

Last Answer : Answer : B

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 : 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

Last Answer : Answer : C

From DNA the genetic message is transcribed into this compound: (A) Protein (B) mRNA (C) tRNA (D) rRNA

Description : From DNA the genetic message is transcribed into this compound: (A) Protein (B) mRNA (C) tRNA (D) rRNA

Last Answer : Answer : B

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

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

The mushroom poison amanitin is an inhibitor of (A) Protein synthesis (B) mRNA synthesis (C) DNA synthesis (D) Adenosine synthesis

Description : The mushroom poison amanitin is an inhibitor of (A) Protein synthesis (B) mRNA synthesis (C) DNA synthesis (D) Adenosine synthesis

Last Answer : Answer : B

Genetic information of nuclear DNA is transmitted to the site of protein synthesis by (A) rRNA (B) mRNA (C) tRNA (D) Polysomes

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

What is the name given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre mRNA?

Description : What is the name given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre mRNA?

Last Answer : transcription

The action of Vitamin K in formation of clotting factor is through (A) Post transcription (B) Post translation (C) Golgi complex (D) Endoplasmic reticulum

Description : The action of Vitamin K in formation of clotting factor is through (A) Post transcription (B) Post translation (C) Golgi complex (D) Endoplasmic reticulum

Last Answer : Answer : B

The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA is (a) transversion (b) transcription (c) translation (d) translocation.

Description : The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA is (a) transversion (b) transcription (c) translation (d) translocation.

Last Answer : (c) translation

The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA is (a) transversion (b) transcription (c) translation (d) translocation.

Description : The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA is (a) transversion (b) transcription (c) translation (d) translocation.

Last Answer : transcription

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 with specific amino acids b. Covalent attachment of tRNA to amino acids is energy dependent c. The formation of a peptide bond between the growing peptide chain and the free amino acid occurs in the free cytoplasm d. Complete protein synthesis takes hours

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

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 50S ribosome and blocking translocation of peptide chain D. Binding to both 30S and 50S ribosome and inducing misreading of mRNA code

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

Transcription means the synthesis of – (1) Lipids (2) Protein (3) DNA (4) RNA

Description : Transcription means the synthesis of – (1) Lipids (2) Protein (3) DNA (4) RNA

Last Answer : (3) DNA Explanation: Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme, RNA polymerase. During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, anti-parallel RNA strand.

.After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Description : .After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Last Answer : (d) RNA transcription pattern.

After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Description : After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Last Answer : a) protein structure

Transcription means the synthesis of (1) Lipids (2) Protein (3) DNA (4) RNA

Description : Transcription means the synthesis of (1) Lipids (2) Protein (3) DNA (4) RNA

Last Answer : DNA

The process of producing a protein from its DNA- and mRNA-coding sequences.

Description : The process of producing a protein from its DNA- and mRNA-coding sequences.

Last Answer : Ans. Gene expression

The transforming principle of Pneumococcus as found out by Avery, MacLeod and McCarty was (a) mRNA (b) DNA (c) protein (d) polysaccharide. (

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

The transforming principle of Pneumococcus as found out by Avery, MacLeod and McCarty was (a) mRNA (b) DNA (c) protein (d) polysaccharide

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

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

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

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 cytoplasm. 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. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

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.

Regulator gene controls chemical synthesis (Operon concept) by (a) Inhibiting transcription of mRNA (b) Inhibiting enzymes (c) Inhibiting passage of mRNA (d) Inhibiting substrate enzyme reaction

Description : Regulator gene controls chemical synthesis (Operon concept) by (a) Inhibiting transcription of mRNA (b) Inhibiting enzymes (c) Inhibiting passage of mRNA (d) Inhibiting substrate enzyme reaction

Last Answer : Ans. ((a))

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?

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.

Formation of RNA primer: (A) Precedes replication (B) Follows replication (C) Precedes transcription (D) Follows transcription

Description : Formation of RNA primer: (A) Precedes replication (B) Follows replication (C) Precedes transcription (D) Follows transcription

Last Answer : Answer : A

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

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

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

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

After formation of a peptide bond, mRNA is translocated along the ribosome by (A) eEF-1 and GTP (B) eEF-2 and GTP (C) Peptidyl transferase and GTP (D) Peptidyl transferase and ATP

Description : After formation of a peptide bond, mRNA is translocated along the ribosome by (A) eEF-1 and GTP (B) eEF-2 and GTP (C) Peptidyl transferase and GTP (D) Peptidyl transferase and ATP

Last Answer : Answer : B

In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core enzymes of RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation

Description : In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core ... RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation

Last Answer : Answer : C

Binding of thyroxine to its receptors (A) Activates Adenylate cyclase (B) Activates guanylate cyclase (C) Activates a stimulatory G-protein (D) Increases transcription

Description : Binding of thyroxine to its receptors (A) Activates Adenylate cyclase (B) Activates guanylate cyclase (C) Activates a stimulatory G-protein (D) Increases transcription

Last Answer : Answer : D

Proteins which interact with DNA and affect the rate of transcription possess the following structural motif: (A) Helix-turn-helix motif (B) Zinc finger motif (C) Leucine zipper motif (D) All of these

Description : Proteins which interact with DNA and affect the rate of transcription possess the following structural motif: (A) Helix-turn-helix motif (B) Zinc finger motif (C) Leucine zipper motif (D) All of these

Last Answer : Answer : D

Rifampicin inhibits (A) Unwinding of DNA (B) Initiation of replication (C) Initiation of translation (D) Initiation of transcription

Description : Rifampicin inhibits (A) Unwinding of DNA (B) Initiation of replication (C) Initiation of translation (D) Initiation of transcription

Last Answer : Answer : D

The termination site for transcription is recognized by (A) α−Subunit of DNA-dependent RNA polymerase (B) β−Subunit of DNA-dependent RNA polymerase (C) Sigma factor (D) Rho factor

Description : The termination site for transcription is recognized by (A) α−Subunit of DNA-dependent RNA polymerase (B) β−Subunit of DNA-dependent RNA polymerase (C) Sigma factor (D) Rho factor

Last Answer : Answer : D

The initiation site for transcription is recognized by (A) α−Subunit of DNA-dependent RNA polymerase (B) β−Subunit of DNA-dependent RNA polymerase (C) Sigma factor (D) Rho factor

Description : The initiation site for transcription is recognized by (A) α−Subunit of DNA-dependent RNA polymerase (B) β−Subunit of DNA-dependent RNA polymerase (C) Sigma factor (D) Rho factor

Last Answer : Answer : C

Synthesis of RNA and a DNA template is known as (A) Replication (B) Translation (C) Transcription (D) Mutation

Description : Synthesis of RNA and a DNA template is known as (A) Replication (B) Translation (C) Transcription (D) Mutation

Last Answer : Answer : C