List of top Animal Biotechnology Questions asked in ICAR AIEEA (PG)

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Tetracycline inhibits protein synthesis in bacteria.
Reason (R): It prevents binding of aminoacyl tRNA to A-site of active ribosomal subunit.
Choose the correct answer from the options given below:

Which of the following statements are correct for stem cell?
(A). Stem cells can be obtained from blastocysts.
(B). Embryonic stem cells can be grown in the laboratory.
(C). Stem cells are specialized cell.
(D). They can divide and renew for a long period.
Choose the correct answer from the options given below:

Which of the following are needed for polymerase chain reaction?
(A). Template DNA segment of interest
(B). Oligonucleotide primers
(C). Taq DNA polymerase
(D). Ribonucleotide triphosphates
Choose the correct answer from the options given below:

Which of the following statements are correct for micro RNA (miRNA)?
(A). Noncoding RNA
(B). Regulates mRNA function
(C). Involve in gene regulation
(D). miRNAs are found in eukaryotes
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Newly synthesized tRNA undergoes post transcriptional modifications which include
(A). Nucleotide alkylation
(B). Attachment of \(\text{C}_\text{p}\text{C}_\text{p}\text{A}_\text{OH}\) terminal at 3' end
(C). Attachment of \(\text{C}_\text{p}\text{C}_\text{p}\text{A}_\text{OH}\) terminal at 5' end
(D). Methylation of some bases
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Basic function of a fermentor is

The constituent units of a core E.coli DNA polymerase III are
(A). \(\alpha\) (alpha) subunit
(B). \(\epsilon\) (epsilon) subunit
(C). \(\theta\) (theta) subunit
(D). \(\delta\) (delta) subunit
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According to Wobble hypothesis GCI present in anticodon arm of tRNA can bind to triplet codons present in mRNA are
(A). 5' CGA 3'
(B). 3' CGA 5'
(C). 5' CGU 3'
(D). 3' CGU 5'
Choose the correct answer from the options given below:

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): DNA replication is very accurate.
Reason (R): DNA polymerase add correct base with correct hydrogen bonding of the base pair and the common geometry of the standard \(\text{A}=\text{T}\) and \(\text{G}\equiv\text{C}\) base pairs recognized by the active site of polymerase enzyme.
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Vaccine was invented by

Which of the following statements are correct for a regulatory sequence in a gene?
(A). Provide signal that denote beginning of a gene.
(B). Provide signal that denote end of a gene.
(C). Influence transcription.
(D). Function as initiation point for replication.
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The antibiotics are sensitive to \(\beta\)-lactamase enzyme
(A). Penicillin
(B). Ampicillin
(C). Amoxicillin
(D). Erythromycin
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Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Two neutral solutions A and B contain double stranded DNA molecule with same length and same concentrations, solution A is heated to increase the temperature of solution and absorbance of both the solutions were measured at 260nm. The absorbance of the solution A was found more than that of solution B.
Reason (R): Denaturation of DNA increases the absorbance of UV rays at 260nm.
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Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Shuttle vector can be propagated in cells of two or more species.
Reason (R): Shuttle vector contain multiple replication of origin and other elements that allows them to be used in more than one species.
Choose the correct answer from the options given below:

The eukaryotic histones which are nearly identical in amino acid sequence
(A). \(\text{H}_1\)
(B). \(\text{H}_2\text{A}\)
(C). \(\text{H}_3\)
(D). \(\text{H}_4\)
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The statements true for topoisomerase-I enzyme
(A). Transiently break one of the two DNA strands.
(B). Break both of the strand of double helix DNA.
(C). Change the linking number in increment of one.
(D). Change the linking number by decreasing one.
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Watson and Crick base pairing is found in

If a single strand of DNA contain seven restriction sites for a particular restriction endonuclease and none of the restriction site is present either at 3' or 5' end then this enzyme will form how many DNA fragment reacting on it

Covalently modified bases are found in

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Restriction endonuclease is used to cut DNA molecules for cloning.
Reason (R): Restriction endonuclease enzyme cut DNA molecule of any source into unique short pieces in a sequence specific manner.

The viral RNA inducible interferon system provides the molecular defense against

Which of the following are true for a bacterial artificial chromosome?
(A). It is a kind of artificial plasmid.
(B). It can clone a DNA segment of 100000 to 300000 base pairs.
(C). It can clone a DNA segment of 1000000 to 3000000 base pairs.
(D). It can clone a DNA segment of 3000000 to 5000000 base pairs.
Choose the correct answer from the options given below:

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): In RNA molecule guanine content is equal to the cytosine content.
Reason (R): Mostly RNAs are single stranded molecule.
In light of the above statements, choose the correct answer from the options given below.

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Plasmid can replicate independently but not a DNA fragment separated from a eukaryotic chromosome.
Reason (R): Plasmid contain replication origin.
In light of the above statements, choose the correct answer from the options given below.

Telomeres are present in:
(A). E. coli chromosome
(B). Yeast Chromosome
(C). Human Chromosome
(D). Molds chromosome
Choose the correct answer from the options given below: