Why is mRNA shorter than DNA? -Biology

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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

Description : Sequence of AAT GCT TAG GCA on template segment of DNA will be represented over the transcribed mRNA as

Last Answer : Sequence of AAT GCT TAG GCA on template segment of DNA will be represented over the transcribed mRNA as A. ... C. UUA CGA AUC CGU D. TTA CGA ATC CGT

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

Description : What is the mRNA sequence if the DNA sequence is GATCCT?

Last Answer : Need answer

Description : If the 17th nucleotide in the original DNA were changed from T to A what mRNA would the new DNA code for?

Last Answer : Need answer

Description : What happens to the original DNA strand once the mRNA is completely copied?

Last Answer : Feel Free to Answer

Description : What is complementary mRNA sequences for DNA bases A-T-C-A-G-G?

Last Answer : What is the answer ?

Description : What are the three bases on one strand of DNA or mRNA called?

Last Answer : What is the answer ?

Description : Amanitin the mushroom poison inhibits (A) Glycoprotein synthesis (B) ATP synthesis (C) DNA synthesis (D) mRNA synthesis

Last Answer : Answer : D

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

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 : Genetic information in human beings is stored in (A) RNA (B) DNA (C) Both (A) and (B) (D) mRNA

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

Last Answer : Answer : C

Description : Codons are in (A) DNA (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 : 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

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

Last Answer : Answer : C

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

Last Answer : Answer : B

Description : Genetic information originates from (A) Cistron of DNA (B) Codons of mRNA (C) Anticodons of tRNA (D) Histones of nucleoproteins

Last Answer : Answer : A

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 : If the codon UAC on mRNA changes into UAG as a result of a base substitution in DNA, it will result in (A) Silent mutation (B) Acceptable mis-sense mutation (C) Nonsense mutation (D) Frameshift mutation

Last Answer : Answer : C

Description : Anticodons are present on (A) Coding strand of DNA (B) mRNA (C) tRNA (D) rRNA

Last Answer : Answer : C

Description : Ciprofloxacin inhibits the synthesis of (A) DNA (B) mRNA (C) tRNA (D) rRNA

Last Answer : Answer : A

Description : Novobicin inhibits the synthesis of (A) DNA (B) mRNA (C) tRNA (D) rRNA

Last Answer : Answer : A

Description : Okazaki pieces are formed during the synthesis of (A) mRNA (B) tRNA (C) rRNA (D) DNA

Last Answer : Answer : D

Description : Transfer RNA transfers (A) Information from DNA to ribosomes (B) Information from mRNA to cytosol (C) Amino acids from cytosol to ribosomes (D) Proteins from ribosomes to cytosol

Last Answer : Answer : C

Description : The number of adenine and thymine bases is equal in (A) DNA (B) mRNA (C) tRNA (D) rRNA

Last Answer : Answer : A

Description : Codons are present in (A) Template strand of DNA (B) mRNA (C) tRNA (D) rRNA

Last Answer : Answer : B

Description : Alkalis cannot hydrolyse (A) mRNA (B) tRNA (C) rRNA (D) DNA

Last Answer : Answer : D

Description : Number of guanine and cytosine residues is equal in (A) mRNA (B) tRNA (C) DNA (D) None of these

Last Answer : Answer : C

Description : The ‘transforming factor’ discovered by Avery, McLeod and McCarty was later found to be (A) mRNA (B) tRNA (C) DNA (D) None of these

Last Answer : Answer : C

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

Last Answer : Answer : A

Description : In the following partial sequence of mRNA, a mutation of the template DNA results in a change in codon 91 to UAA. The type of mutation is 88 89 90 91 92 93 94 GUC GAC CAG UAG GGC UAA CCG (A) Missene (B) Silent (C) Nonsense (D) Frame shit

Last Answer : Answer : B

Description : In prokaryotes, chloramphenicol (A) Causes premature release of the polypeptide chain (B) Causes misreading of the mRNA (C) Depolymerises DNA (D) Inhibits peptidyl transferase activity

Last Answer : Answer : A

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

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

Description : Polysomes lack in (A) DNA (B) mRNA (C) rRNA (D) tRNA

Last Answer : Answer : A

Description : The nucleic acid base found in mRNA but not in DNA is (A) Adenine (B) Cytosine (C) Guanine (D) Uracil

Last Answer : Answer : D

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 : RNA interference involves (a) synthesis of cDNA and RNA using reverse transcriptase (b) silencing of specific mRNA due to complementary RNA (c) interference of RNA in synthesis of DNA (d) synthesis of mRNA from DNA

Last Answer : (b) silencing of specific mRNA due to complementary RNA

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

Last Answer : b) mRNA

Description : mRNA is synthesised on DNA template in which direction? (a) 5′ → 3′ (b) 3′ → 5′ (c) Both (a) and (b) (d) Any

Last Answer : a) 5′ → 3′

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

Description : What will be the sequence of mRNA produced by the following stretch of DNA? 3′ATGCATGCATGCATG5′TEMPLATE STRAND 5′ TACGTACGTACGTAC3′ CODING STRAND (a) 3′AUGCAUGCAUGCAUG5′ (b) 5′UACGUACGUACGUAC 3′ (c) 3′ UACGUACGUACGUAC 5′ (d) 5′ AUGCAUGCAUGCAUG 3

Last Answer : d) 5′ AUGCAUGCAUGCAUG 3′

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