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Assertion Reason Test: Molecular Basis Of Inheritance - NEET MCQ


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20 Questions MCQ Test Additional Study Material for NEET - Assertion Reason Test: Molecular Basis Of Inheritance

Assertion Reason Test: Molecular Basis Of Inheritance for NEET 2024 is part of Additional Study Material for NEET preparation. The Assertion Reason Test: Molecular Basis Of Inheritance questions and answers have been prepared according to the NEET exam syllabus.The Assertion Reason Test: Molecular Basis Of Inheritance MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Assertion Reason Test: Molecular Basis Of Inheritance below.
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Assertion Reason Test: Molecular Basis Of Inheritance - Question 1

A: RNA polymerase is of three types in eukaryotes for the synthesis of all types of RNAs.

R: RNA polymerase consists of six types of polypeptides along with rho factor, which is involved in the termination of RNA synthesis.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 2

A: 5S rRNA and the surrounding protein complex provides the binding site of tRNA.

R: tRNA is soluble RNA with unusual bases.

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Assertion Reason Test: Molecular Basis Of Inheritance - Question 3

A: Operator gene is functional when a repressor does not block it.

R: Regulator gene produces active protein only, which acts on the operon system in E.coli.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 3
Regulator gene produces its product. It is inducer which will bind with repressor.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 4

A: Peptidyl transfer site is contributed by a larger subunit of ribosome.

R: Both 23S and 16S ribosomal sub-units contribute the enzyme peptidyl transferase.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 5

A: Teminism is the unidirectional flow of information.

R: It requires DNA dependent RNA polymerase enzyme.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 5
Feminisms is reverse transcription, so no unidirectional flow of information.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 6

A: In the bacterial translation mechanism, two tRNA are required by methionine.

R: AUG codes for methionine, and it shows non-ambiguity also.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 7

A: Nutritional mutant strain of pink mould is auxotroph.

R: It is not able to prepare its own metabolites from the raw materials obtained from outside.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 7

Auxotrops are mutants which have specific nutritional demand

Assertion Reason Test: Molecular Basis Of Inheritance - Question 8

A: In DNA fingerprinting, hybridization is done with the molecular probe.

R: Molecular probe is a small DNA segment synthesized in a laboratory with a known sequence that recognises the complementary sequence in RNA.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 8
Probe help in identification of an unknown sequence of DNA.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 9

A: c-DNA libraries are important to scientists in human genomics.

R: c-DNA is a synthetic type of DNA generated from mRNA.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 10

A: SNPs-pronounced "snips" are common in the human genome.

R: It is minute variations that occur at a frequency of one in every 300 bases.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 10
Single nucleotide polymorphism.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 11

A: Catalytic functions were assigned to RNA molecule during evolution.

R: The rate of mutation is quite fast in RNA.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 12

A: Kornberg enzyme is associated with the removal of primers and thymine dimer.

R: DNA polymerase I does exonuclease activity in 5’→3’ and 3’→5’ directions.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 13

A: Wobbling reduces the number of tRNAs required for polypeptide synthesis.

R: It increases the effect of code degeneracy.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 13
One tRNA can read non-complementary sequence by Wobble hypothesis.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 14

A: Unknown DNA after hybridization with VNTR probe, the autoradiogram gives many bands of differing sizes in DNA profiling.

R: These bands represent the DNA fingerprint of an organism.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 15

A: Polypeptide sequences are dictated by DNA and represented by mRNA.

R: Sequence of amino acids in a polypeptide can be predicted by the exact sequence of nucleotides on the mRNA and template DNA.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 16

A: Triplet genetic code can be confirmed by frameshift mutations.

R: Frame shifting involves the change in protein product coded by triplet codons.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 16
By addition or deletion of one Nucleotide cause frame shift mutation.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 17

A: Lac operon exerts negative control only.

R: The operator is occupied by aporepressor during regulation.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 17
Lac openon is +ve and –ve control.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 18

A: Single DNA dependent RNA polymerase catalyses the transcription of all types of RNA in all except bacteria.

R: Structural genes in bacteria are monocistronic.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 19

A: Sigma factor of RNA polymesase recognizes the start signal region in prokaryotes.

R: Promotor region lies at 5¢ of the template strand.

Assertion Reason Test: Molecular Basis Of Inheritance - Question 20

A: HGP was completed in 2003 by sequencing all genes of all chromosomes.

R: All coding and noncoding genes were sequenced by ESTs.

Detailed Solution for Assertion Reason Test: Molecular Basis Of Inheritance - Question 20

Ongoing sequencing led to the announcement of the essentially complete genome on April 14, 2003, two years earlier than planned. In May 2006, another milestone was passed on the way to completion of the project, when the sequence of the very last chromosome was published in Nature.

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