NSO Level 1- Science Olympiad (SOF) Class 10: Questions 543 - 546 of 986

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Question number: 543

» Heredity and Evolution

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MCQ▾

Question

What is the following statement is incorrect for sex chromosomes in human?

Choices

Choice (4)Response

a.

The Y chromosome has one long arm and a very short second arm

b.

Individuals having one Y chromosome (YY) are male

c.

The X chromosome resembles a large autosomal chromosome with a long and a short arm

d.

Individuals having two X chromosomes (XX) are female

Question number: 544

» Heredity and Evolution

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MCQ▾

Question

Choose correct one

The main concept of Darwin’s theory are

Choices

Choice (4)Response

a.

Over production

b.

Natural selection

c.

Struggle for existence

d.

All a. , b. and c. are correct

Question number: 545

» Human Eye and Colourful World

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MCQ▾

Question

Find the incorrect option?

Choices

Choice (4)Response

a.

Newton found that when an inverted prism be placed in the path of dispersed light then after passing through prism, they recombine to form white light.

b.

The refraction of light caused by the earths is called atmospheric refraction.

c.

Light consisting of single colour or wavelength is called polychromatic light

d.

White light consists of seven colors

Question number: 546

» Human Eye and Colourful World

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MCQ▾

Question

A rainbow is produced due to which one of the following phenomena?

Choices

Choice (4)Response

a.

Diffraction of light

b.

Interference of light

c.

Ionization of water droplets

d.

Dispersion of light

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