NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1163 - 1167 of 1484

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Question number: 1163

» Biology » Hereditary and Variation

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MCQ▾

Question

In Miller and Urey experiment, which of the following gases originally given rise to amino acids?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1164

» Biology » Control and Coordination

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MCQ▾

Question

Which of the following hormones promotes ripening of fruit and abscission of leaves, flowers, fruits and roots?

Choices

Choice (4) Response

a.

Ethylene

b.

NAA

c.

ABA

d.

Cytokinins

Question number: 1165

» Biology » Reproduction

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MCQ▾

Question

Which of these statements about the reproductive system of a plant is not true?

Choices

Choice (4) Response

a.

Anther is the male part of the flower that contains pollen grains, the male gamete

b.

Pollen contains the female gametes and is found on the style

c.

Filament is the male part of the flower that holds up the anthers

d.

Stigma is the female part of a flower where pollen grains land

Question number: 1166

» Biology » Control and Coordination

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MCQ▾

Question

Which of the following hormones plays an important function of production of breast milk?

Choices

Choice (4) Response

a.

Oxytocin

b.

Testosterone

c.

Prolactin

d.

Progesterone

Question number: 1167

» Biology » Hereditary and Variation

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MCQ▾

Question

Which of the following are examples of homologous origin?

Choices

Choice (4) Response

a.

Wings of bats and Wings of butterfly

b.

Forelimb of a frog and Wings of birds

c.

Forelimb of Frog and forelimb of man

d.

Question does not provide sufficient data or is vague

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