NEET Biology: Questions 1573 - 1578 of 3146

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Question number: 1573

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

Appeared in Year: 2005

MCQ▾

Question

E. coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because (AIPMT)

Choices

Choice (4) Response

a.

The lac operon is constitutively active in these cells

b.

They cannot synthesize functional betagalactosidase

c.

In the presence of glucose, K. coli cells do not utilize lactose

d.

They cannot transport lactose from the medium into the cell

Question number: 1574

» Diversity in Living World » Five Kingdom Classification » Monera

MCQ▾

Question

Photosynthesis of Blue green algae is

Choices

Choice (4) Response

a.

oxygenic and non oxygenic

b.

Non oxygenic

c.

Oxygenic

d.

None of the above

Question number: 1575

» Diversity in Living World » Five Kingdom Classification » Monera

MCQ▾

Question

Bacteria & yeast are similar to each other in all of the following characteristic except that

Choices

Choice (4) Response

a.

Bacteria & yeast are capable of causing fermentation

b.

Bacteria & yeast are unicellular

c.

Bacteria & yeast are prokaryotes

d.

Bacteria & yeast have cell wall

Question number: 1576

» Biotechnology and Its Applications » Principles and Process of Biotechnology

Appeared in Year: 1999

MCQ▾

Question

E. coli are used in production of (AIPMT)

Choices

Choice (4) Response

a.

Rifampicin

b.

Interferon

c.

Ecdyson

d.

LH

Question number: 1577

» Diversity in Living World » Five Kingdom Classification » Monera

MCQ▾

Question

Bacteria were considered as plant because

Choices

Choice (4) Response

a.

They are present every where

b.

They have a cell wall

c.

They can’t move

d.

They multiply by fission

Question number: 1578

» Diversity in Living World » Five Kingdom Classification » Monera

MCQ▾

Question

Which stain is used to distinguish Gram + bacterium from a gram- type?

Choices

Choice (4) Response

a.

Flematoxylin

b.

Eosin

c.

Carmine

d.

Crystal violet

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