NEET NCERT Biology Molecular Basis of Inheritance model exam,mcqs

Molecular Basis of Inheritance Model Test-10

Question No:1

A well -known technique to amplify a small protein of DNA is termed as

[A] PCR
[B] VNTR
[C] UTR
[D] EST



Question No:2

VNTRs vary in size from _____ to ______.

[A] 0.1 to 20 bases
[B] 0.1 to 20 kilobases
[C] 0.1 to 20 hectobases
[D] 0.1 to 20 decabses



Question No:3

Similar DNA finger printing is obtained for

[A] Dizygotic twins
[B] Monozygotic twins
[C] Polyzytotic twins
[D] None



Question No:4

In DNA fingerprinting, the hybridised strands are detected by

[A] Radiometery
[B] Radioscopy
[C] Auto radiography
[D] Scintillation counter



Question No:5

Under HGP, the largest known human gene was of

[A] Somatotrophin
[B] Dystrophin
[C] Lactrophin
[D] Somatostain



Question No:6

Assertion: DNA act as the genetic material in most of the organisms.
Reason: DNA is chemically & structurally a stable molecule; has power of replication.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:7

Assertion: In RNA the uracil is found at the place of thymine.
Reason: 5 – methyl uracil is chemical name for thymine

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:8

Assertion: There is uniform distance between two strands of DNA.
Reason: Purine always comes opposite to pyrimidine.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:9

Assertion: Chargaff rule is applicable to RNA.
Reason: RNA is double standard molecule.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:10

Assertion: Viruses having shorter life span, mutate & evolve faster.
Reason: Viruses have generally RNA genome.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:11

Assertion: RNA was first genetic material.
Reason: Essential life processes (such as metabolism, translation, splicing etc.) evolve around RNA.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:12

Assertion: UTRs are present at both 5 end and 3end in m-RNA.
Reason: UTRs are required for efficient translation process.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:13

Assertion: DNA polymerase-I acts as proofreader.
Reason: DNA polymerase-I removes mismatched nucleotides.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:14

Assertion: The genetic codes are commaless.
Reason: Genetic codes are overlapping.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false



Question No:15

Assertion: Cytoplasmic inheritance occurs only due to plasmagenes.
Reason: Plasmagenes are restricted to only nucleus.

[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are tree but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false