Which one of the following could NOT cause a change in the mRNA ―reading frame‖? a. Insertion Sequence b. Base-Pair Substitution c. Base Addition d. Base Deletion

Which one of the following could NOT cause a change in the
mRNA
―reading frame‖?
a. Insertion Sequence
b. Base-Pair Substitution
c. Base Addition
d. Base Deletion
by

1 Answer

Answer :

b. Base-Pair Substitution
by

Related questions

Under which of the following conditions there will be no change in the reading frame of following mRNA? 5’ AACAGCGGUGCUAUU 3’ (a) Deletion of GGU from 7th, 8th and 9th positions (b) Insertion of G at 5th position (c) Deletion of G from 5th position (d) Insertion of A and G at 4th and 5th position respectively

Description : Under which of the following conditions there will be no change in the reading frame of following mRNA? 5' AACAGCGGUGCUAUU 3' (a) Deletion of GGU from 7th, 8th and 9th positions (b) Insertion of G ... ) Deletion of G from 5th position (d) Insertion of A and G at 4th and 5th position respectively

Last Answer : (a) Deletion of GGU from 7th, 8th and 9th positions

Under which of the following conditions there will be no change in the reading frame of following mRNA? 5’ AACAGCGGUGCUAUU 3’ (a) Deletion of GGU from 7th, 8th and 9th positions (b) Insertion of G at 5th position (c) Deletion of G from 5th position (d) Insertion of A and G at 4th and 5th position respectively

Description : Under which of the following conditions there will be no change in the reading frame of following mRNA? 5' AACAGCGGUGCUAUU 3' (a) Deletion of GGU from 7th, 8th and 9th positions (b) Insertion of G ... ) Deletion of G from 5th position (d) Insertion of A and G at 4th and 5th position respectively

Last Answer : (a) Deletion of GGU from 7th, 8th and 9th positions

Insertion of a base in a gene can cause (A) Change in reading frame (B) Garbled amino acid sequence in the encoded protein (C) Premature termination of translation (D) All of these

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Last Answer : Answer : D

A point mutation results from (A) Substitution of a base (B) Insertion of a base (C) Deletion of a base (D) All of these

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Last Answer : Answer : A

Which of the statements give below is correct with respect to frameshift mutation a) a single nucleotide base change, insertion, or deletion of the genetic material b) Glutamine is replaced by valine c) Sickle cell anemia is an example d) insertions or deletions of a number of nucleotides in a DNA sequence that is not divisible by three.

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Last Answer : d) insertions or deletions of a number of nucleotides in a DNA sequence that is not divisible by three.

How many nucleotides would cause a frame shift mutation for insertion or deletion A. 6 B. 2 C. 3 D. 9?

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The most likely lethal mutation is (A) Substitution of adenine for cytosine (B) Insertion of one nucleotide (C) Deletion of three nucleotides (D) Substitution of cytosine for guanine

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Post-transcriptional modification of hnRNA involves all of the following except (A) Addition of 7-methylguanosine triphosphate cap (B) Addition of polyadenylate tail (C) Insertion of nucleotides (D) Deletion of introns

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Last Answer : Answer : C

Which one of the following causes frame shift mutation? (A) Transition (B) Transversion (C) Deletion (D) Substitution of purine to pyrimidine

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Last Answer : Answer : C

Which one of the following causes frame shift mutation? (A) Transition (B) Transversion (C) Deletion (D) Substitution of purine to pyrimidine

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Last Answer : Answer : C

Spontaneous mutations could arise from a. DNA replication errors. b. Atmospheric Radiation. c. Addition Of Insertion Sequences. d. All the above (A—C) are correct.

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The Shine-Dalgarno sequence is A- trailer sequence B- a stop codon C- the reading frame of a gene D- a short sequence that acts as a ribosomal binding site

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Last Answer : a short sequence that acts as a ribosomal binding site

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Last Answer : a short sequence that acts as a ribosomal binding site

Which of the following is a nontranslated sequence located between the transcription andthetranslation start site? A-Ending frame B- Leader sequenceC- Trailer sequence D-Reading frame

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Last Answer : Leader sequence

What is the term used for a segment of DNA with one or more genes in the centre and the twoends carrying inverte d repeat sequences of nucleotides? A- Plasmid B- Transposon C- Insertion sequence D- None of these

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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

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Last Answer : Answer : B

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

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……… is not the operation that can be performed on queue. A) Insertion B) Deletion C) Retrieval D) Traversal

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Last Answer : D) None of the above

In ............ allocation method for disk block allocation in a file system, insertion and deletion of blocks in a file is easy. (A) Index (B) Linked (C) Contiguous (D) Bit Map

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Last Answer : (B) Linked

Consider an implementation of unsorted single linked list. Suppose it has its representation with a head and a tail pointer (i.e. pointers to the first and last nodes of the linked list). Given the representation, which of the following operation cannot be implemented in O(1) time ? (A) Insertion at the front of the linked list. (B) Insertion at the end of the linked list. (C) Deletion of the front node of the linked list. (D) Deletion of the last node of the linked list.

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Last Answer : (D) Deletion of the last node of the linked list. 

Which of the following is true for computation time in insertion, deletion and finding maximum and minimum element in a sorted array? (1) Insertion-O(1), Deletion-O(1), Maximum-O(1), Minimum-O(1) (2) Insertion-O(1), Deletion-O(1), Maximum-O(n), Minimum-O(n) (3) Insertion-O(n), Deletion-O(n), Maximum-O(1), Minimum-O(1) (4) Insertion-O(n), Deletion-O(n), Maximum-O(n), Minimum-O(n)

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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

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Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it? 5′ _____ GAATTC _____ 3′ 3′ _____ CTTAAG _____ 5′ (a) Replication completed (b) Deletion mutation (c) Start codon at the 5′ end (d) Palindromic sequence of base pairs

Description : Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it? 5′ _____ GAATTC _____ 3′ 3′ _____ CTTAAG _____ 5′ (a) ... completed (b) Deletion mutation (c) Start codon at the 5′ end (d) Palindromic sequence of base pairs

Last Answer : (d) Palindromic sequence of base pairs

. Sickle-cell anaemia is (a) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin (b) caused by a change in a single base pair of DNA (c) characterized by elongated sickle like RBCs with a nucleus (d) an autosomal linked dominant trait.

Description : . Sickle-cell anaemia is (a) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin (b) caused by a change in a single base pair of DNA (c) characterized by elongated sickle like RBCs with a nucleus (d) an autosomal linked dominant trait.

Last Answer : (b) caused by a change in a single base pair of DNA

Immunological tolerance to ―self‖ is established by a. Destruction of self-reactive lymphoid cells. b. Clonal anergy. c. Clonal deletion. d. All the above (A—C) are correct.

Description : Immunological tolerance to ―self‖ is established by a. Destruction of self-reactive lymphoid cells. b. Clonal anergy. c. Clonal deletion. d. All the above (A—C) are correct.

Last Answer : d. All the above (A—C) are correct.

Induction of tolerance mechanism(s) is/are A- Suppression B- clonal deletion C- .clonal anergy D- all of these

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When composite transposons are formed A- a small deletion occurs in the transposase gene of an IS element B- a small deletion occurs in the transposase gene of an IS element and plasmid is integrated C- an IS element integrates with another IS element with the help of a plasmid D- two IS elements integrate into a chromosome with only a small distance separating them

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Last Answer : two IS elements integrate into a chromosome with only a small distance separating them

A part of an mrna has the base sequence gca. which change to this sequence would indicate a missense mutation?

Description : A part of an mrna has the base sequence gca. which change to this sequence would indicate a missense mutation?

Last Answer : A missense mutation is the change in a single nucleotide that results in a different amino acid being coded for. GCA codes for the amino acid Alanine. Therefore any of the following changes would be missense ... acid GUA -> Valine GGA -> Glycine CCA -> Proline UCA -> Serine ACA -> Threonine

Transposable genetic elements (transposons) a. Were First Discovered By Watson And Crick. b. Are Smaller Than Insertion Sequences. c. Are Examples Of Plasmids. d. May Have Information For Antibiotic Resistance.

Description : Transposable genetic elements (transposons) a. Were First Discovered By Watson And Crick. b. Are Smaller Than Insertion Sequences. c. Are Examples Of Plasmids. d. May Have Information For Antibiotic Resistance.

Last Answer : d. May Have Information For Antibiotic Resistance.

Thalassemia is an example of – (1) Deletion mutation (2) Point mutation (3) Silent mutation (4) Frame shift mutation

Description : Thalassemia is an example of – (1) Deletion mutation (2) Point mutation (3) Silent mutation (4) Frame shift mutation

Last Answer : (4) Frame shift mutation Explanation: Frame shift mutations are associated with Thalassemia. They involve a deletion or insertion of one' or two base pairs within a coding sequence of a gene. As ... and deletions, the reading frame of mRNA is altered resulting in a nonsense sequence of amino acids.

Thalassemia is an example of (1) Deletion mutation (2) Point mutation (3) Silent mutation (4) Frame shift mutation

Description : Thalassemia is an example of (1) Deletion mutation (2) Point mutation (3) Silent mutation (4) Frame shift mutation

Last Answer : Frame shift mutation

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

Which one of the following statements concerning glucose-6-phosphate dehydrogenase deficiency is correct? (A) Young R.B.Cs, particularly reticulocytes, contain the highest enzyme activity cells show less enzyme activity (B) Glucose-6-P Dehydroglucose deficiency leads to disfuction of many tissues (C) G-6-p Dehydroglucose deficiency is due to a single deletion of a large sequence of DNA in the G-6-PD gene (D) G-6-PD deficiency is precipitated by ingestion of drugs such as aspirin

Description : Which one of the following statements concerning glucose-6-phosphate dehydrogenase deficiency is correct? (A) Young R.B.Cs, particularly reticulocytes, contain the highest enzyme activity cells show less enzyme ... PD gene (D) G-6-PD deficiency is precipitated by ingestion of drugs such as aspirin

Last Answer : Answer : A

Mutations in promoter regions of genes can cause (A) Premature termination of translation (B) Change in reading frame of downstream structural gene (C) Decreased efficiency of transcription (D) All of these

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Last Answer : Answer : C

Which one of the following statements is true? a. Plasmids are circular molecules of RNA. b. RNA replicates by a conservative method of replication. c. Deletions or insertions of a nucleotide in a gene will cause a reading frameshift during translation. d. Okazaki fragments are removed from a RNA before translation occurs.

Description : Which one of the following statements is true? a. Plasmids are circular molecules of RNA. b. RNA replicates by a conservative method of replication. c. Deletions or insertions of a ... reading frameshift during translation. d. Okazaki fragments are removed from a RNA before translation occurs.

Last Answer : c. Deletions or insertions of a nucleotide in a gene will cause a reading frameshift during translation.

A prokaryotic mRNA that consists of 999 nucleotides will code for how many amino acids? a. 332 b. 333 c. 666 d. 999

Description : A prokaryotic mRNA that consists of 999 nucleotides will code for how many amino acids? a. 332 b. 333 c. 666 d. 999

Last Answer : a. 332

Ribosomes match up the ______ of the mRNA and the ______ of the tRNAs. a. codons; anticodons b. introns; exons c. anticodons; codons d. genes; anticodons

Description : Ribosomes match up the ______ of the mRNA and the ______ of the tRNAs. a. codons; anticodons b. introns; exons c. anticodons; codons d. genes; anticodons

Last Answer : a. codons; anticodons

Multiple ribosomes working together on one mRNA are called a. polysomes b. multisomes c. polymerases d. A-C are correct

Description : Multiple ribosomes working together on one mRNA are called a. polysomes b. multisomes c. polymerases d. A-C are correct

Last Answer : a. polysomes

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

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

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.

The translation of a mRNA by multiple ribosomes is called formation. a. Okazaki b. Polysome c. Plasmid d. Transposon

Description : The translation of a mRNA by multiple ribosomes is called formation. a. Okazaki b. Polysome c. Plasmid d. Transposon

Last Answer : b. Polysome

What does the positive strand in double stranded RNA viruses stands for? A- rRNA B- tRNA C- .mRNA D- None of these

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Last Answer : .mRNA

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

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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

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The role of molecular chaperones is to A-facilitate binding of ribosomes to mRNA B-degrade newly synthesized polypeptides that contain inaccurate sequences C-.facilitate binding of RNA polymerase to DNA D-aid a newly synthesized polypeptide in folding to its proper shape

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