NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1168 - 1173 of 1484

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Question number: 1168

» Biology » Control and Coordination

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MCQ▾

Question

Which of the following movements is induced by a chemical stimulus?

Choices

Choice (4) Response

a.

Thermonasty

b.

Chemonasty

c.

Nyctinasty

d.

Photonasty

Question number: 1169

» Physics » Electricity

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MCQ▾

Question

An electric fan rated operates in a day. What is the cost of the energy to operate it for at ?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1170

» Biology » Reproduction

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MCQ▾

Question

Which of the following plants bear the following structure are shown in below?

Image showing Reproductive structure.

Image Showing Reproductive Structure.

Image showing Reproductive structure.

Choices

Choice (4) Response

a.

Mango

b.

Conifer

c.

Fern

d.

All of the above

Question number: 1171

» Biology » Hereditary and Variation

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MCQ▾

Question

Mutation is:

Choices

Choice (4) Response

a.

Sudden, irreversible and random change in the genotype of an organism which leads to phenotypic change in that organism

b.

Sudden change in phenotype and genotypic expression

c.

Variation between the cell or DNA due to the environmental factor

d.

All a. , b. and c. are correct

Question number: 1172

» Biology » Hereditary and Variation

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MCQ▾

Question

A change in the nucleotide sequence of a gene or a chromosome is called:

Choices

Choice (4) Response

a.

Artificial selection

b.

Mutation

c.

Hybridisation

d.

Evolution

Question number: 1173

» Biology » Reproduction

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MCQ▾

Question

P, Q, R and S are stages of the menstrual cycle. At which stage can ovulation take place?

 Image showing menstrual cycle stage.

Image Showing Menstrual Cycle Stage.

Image showing menstrual cycle stage.

Choices

Choice (4) Response

a.

P

b.

Q

c.

S

d.

R

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