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AIIMS (All India Institute of Medical Sciences) Biology: Questions 444 - 450 of 467

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Question 444

Darwin's Contribution
Edit

Question

MCQ▾

In forming the theory of evolution by natural selection, Darwin was greatly influenced by

Choices

Choice (4)Response
a.Malthus idea of population control
b.Environmental factors
c.Lamarck acquired characters
d.Mutations of Hugo de Vires

Question 445

Modern Synthetic Theory of Evolution
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Question

MCQ▾

Germ plasm theory against Lamarck’s principle, was given by

Choices

Choice (4)Response
a.Weismann
b.Darwin
c.Lamarck
d.Hugo de Vries

Question 446

Edit

Question

MCQ▾

Which fossil man has been known from Shivalik hills in India?

Choices

Choice (4)Response
a.Pithecanthropus
b.Zinjanthropus
c.Sinanthropus
d.Ramapithecus

Question 447

Edit

Question

MCQ▾

Tobacco Mosaic Virus (TMV) has

Choices

Choice (4)Response
a.A double stranded RNA molecule.
b.A single stranded RNA molecule.
c.A double stranded DNA molecule.
d.A single stranded DNA molecule.

Question 448

Edit

Appeared in Year: 2008

Question

MCQ▾

How many sperms are formed from a secondary spermatocyte?

Choices

Choice (4)Response
a.2
b.4
c.8
d.1

Question 449

Edit

Appeared in Year: 2007

Question

MCQ▾

Hydroponics is

Choices

Choice (4)Response
a.soilless culture
b.water less culture
c.nutrient less culture
d.Question does not provide sufficient data or is vague

Question 450

Edit

Appeared in Year: 2007

Question

MCQ▾

Velamen present in orchids help in

Choices

Choice (4)Response
a.synthesizing food
b.absorption of moisture from air
c.absorbing water from support
d.respiration