Genetics and Evolution-Molecular Basis of Inheritance (NEET Biology): Questions 7 - 12 of 75

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 3146 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 700.00 or

Question number: 7

» Genetics and Evolution » Molecular Basis of Inheritance » Lac Operon

MCQ▾

Question

In the lac operon, the structural genes are switched off when

Choices

Choice (4) Response

a.

Repressor binds to promotor.

b.

Repressor binds to operator.

c.

Repressor binds to inducer.

d.

Repressor binds to regulator

Question number: 8

» Genetics and Evolution » Molecular Basis of Inheritance » Gene Expression and Regulation

MCQ▾

Question

In operon concept, the regulator gene regulates chemical reactions in the cell by

Choices

Choice (4) Response

a.

Inhibiting migration of mRNA into cytoplasm.

b.

Inhibiting the substrate in the reaction.

c.

Inactivating enzymes in the reaction

d.

Inhibiting transcription of mRNA

Question number: 9

» Genetics and Evolution » Molecular Basis of Inheritance » DNA Replication

MCQ▾

Question

The point mutations A to G, C to T, C to G and T to A in DNA are

Choices

Choice (4) Response

a.

Transition, transition, transversion and transversion respectively.

b.

Transition, transversion, transition and transversion respectively.

c.

Transversion, transversion, transition and transition respectively.

d.

All four are transition.

Question number: 10

» Genetics and Evolution » Molecular Basis of Inheritance » Translation

MCQ▾

Question

Which one the following mRNA can be translated completely?

Choices

Choice (4) Response

a.

AUG UUC UCC UGG UAA UAU

b.

AUG UUC UCC UGA UGG UAU

c.

AUC ACG UAU UUC UGA CUC

d.

AUG UAU UUC UGC CUC UAG

Question number: 11

» Genetics and Evolution » Molecular Basis of Inheritance » Structure of DNA and RNA

MCQ▾

Question

Adenine is 30 % then what would be the % of guanine?

Choices

Choice (4) Response

a.

20%

b.

10%

c.

30%

d.

40%

Question number: 12

» Genetics and Evolution » Molecular Basis of Inheritance » DNA Replication

MCQ▾

Question

Semiconservative model of DNA replication was proposed by which workers in eukayotes?

Choices

Choice (4) Response

a.

Messelson and Stahl

b.

Taylor, Woods and Huges

c.

Watson and Crick

d.

Nirenberg and Khorana

Sign In