NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 143 - 147 of 3513

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Question number: 143

» Plant Physiology » Transport in Plants » Cell to Cell Transport

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Question

The chief role of transpiration in plants is to cause

Choices

Choice (4)Response

a.

Rapid rise of minerals

b.

Rapid ascent of sap

c.

Cooling of the plant

d.

Loss of surplus water

Question number: 144

» Reproduction » Reproduction in Organisms » Vegetative Propagation in Plants

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Question

Apomixis in plant means development of a plant

Choices

Choice (4)Response

a.

From root cutting

b.

From fusion of gametes

c.

Without fusion of gametes

d.

From stem cuttings

Question number: 145

» Genetics and Evolution » Heredity and Variation » Incomplete Dominance

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Question

Pure tall plants are crossed with pure dwarf plants. In the F1 generation all plants were tall. These tall plants of F1 generation were selfed and the ratio of tall to dwarf plants obtained was 3: 1. This is called

Choices

Choice (4)Response

a.

Dominance

b.

Heredity

c.

Inheritance

d.

Co-dominance

Question number: 146

» Ecology and Environment » Ecosystem » Nutrient Cycling

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MCQ▾

Question

The agent/s which make/s free atmospheric nitrogen available to plants is/are

Choices

Choice (4)Response

a.

Lightning

b.

Symbiotic nitrogen fixing bacteria

c.

Free living nitrogen fixing bacteria

d.

All a. , b. and c. are correct

Question number: 147

» Ecology and Environment » Biodiversity and Its Conservation » Biodiversity Conservation

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MCQ▾

Question

Wild life conservation means the protection and preservation of

Choices

Choice (4)Response

a.

Wild plants only.

b.

All the above living in natural habitat.

c.

Ferocious wild animals only.

d.

Non-cultivated plants and non-domesticated animals.

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