Genetics and Evolution (NEET (National Eligibility cum Medical Entrance Test) Biology): Questions 105 - 111 of 186

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Question number: 105

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

Appeared in Year: 2003

MCQ▾

Question

What does “lac” refer to, in what we call the lac operon (AIPMT)

Choices

Choice (4) Response

a.

Lactose

b.

Lac insect

c.

Lactase

d.

the number 1, oo, ooo

Question number: 106

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

MCQ▾

Question

The end product of a metabolic pathway may bind a repressor to make the latter active enough to bind to operator. In this case the end-product is called

Choices

Choice (4) Response

a.

regulator

b.

Inducer

c.

Aporepressor

d.

co-repressor

Question number: 107

» Genetics and Evolution » Heredity and Variation » Chromosomes and Genes

Appeared in Year: 2002

MCQ▾

Question

Sequence of which of the following is used to know the phylogeny [CBSE PM/PD]

Choices

Choice (4) Response

a.

t - RNA

b.

DNA

c.

r-RNA

d.

m-RNA

Question number: 108

» Genetics and Evolution » Molecular Basis of Inheritance » Genetic Code

Appeared in Year: 2003

MCQ▾

Question

Which one of the following bacteria has found extensive use in genetic engineering work in plants? [CBSE PM/PD]

Choices

Choice (4) Response

a.

Xanthomonas citri

b.

Clostridium septicum

c.

Agrobacterium tumefaciens

d.

Bacillus coagulens

Question number: 109

» Genetics and Evolution » Heredity and Variation » Chromosomes and Genes

MCQ▾

Question

The genes concerned with the production of cancer are called - [MP-PMT]

Choices

Choice (4) Response

a.

Cancer genes

b.

Carcinomas

c.

Carcino genes

d.

Onco genes

Question number: 110

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

Appeared in Year: 1994

MCQ▾

Question

Circular and double stranded DNA occurs in

Choices

Choice (4) Response

a.

Golgibody

b.

Mitochondria

c.

Cytoplasm

d.

Nucleus

Question number: 111

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

Appeared in Year: 1994

MCQ▾

Question

If there are 10, 000 base pairs in DNA, then its length-

Choices

Choice (4) Response

a.

340000 nm

b.

3400 nm

c.

340nm

d.

34000 nm

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