Question # 1

Chromosomes become double during:

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G₁

G₂

G₀

S phase

A hypothesis must be testable to be scientifically valid. Being testable means that:

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Some observations could prove that hypothesis is incorect

Only a controlled experiment can indicate whether the hypothesis is correct or incorrect

The hypothesis is proven wrong

The opposite of hypothesis is tested and proven worng

................. prevent rickets in children & aoreomalacia in adults.

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Vitamin A

Vitamin E

Vitamin D

Vitamin K

................. are involved i protein synthesis.

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SER

RER

Both

None

" Mosquitose are involved in the spread of malaria" was said by:

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Laverna

A.F.A King

Ronald Ross

Darwin

There are ____________ species of insect's and invertibrates.

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20,700 species

20,750 species

26,700 species

20,800 species

There are _______ micrometers in one millimeter.

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10

100

1000

1000000

From which language the word Biology is derived.

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Greak

Urdu

English

German

Trypsim acts on ............. .

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Protein

Carbohydrates

Vitamin

Lipids

Light reaction takes place in the ...... of chloroplast.

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Granum

Strome

Intergrana

All

Presence of third copy of homoglus chromosomes in the cell is called ........... .

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Monosomy

Disomy

Trisomy

Tetra somy

Organisms are classified in different groups on basis of characters.

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Similar

Homologous

Different

Both a and b

The exchange of materials between the blood and the surrounding tissues occurs in:

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Arteries

Veins

Capillaries

All of the above

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Biology 9th Class English Medium Online Test MCQs With Answers

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