Question # 1

In which stage of the cell cycle each chromosomes is duplicated and so it consists of two chromatids?

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G I

S

M

G2

In turner's syndrome female have ................. chromosomes .

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46

45

47

22

Leukemia is a disease in which leucocytes increase ...................... .

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Normally

Abnormally

Both

None

PH of human blood is ......................... .

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7.1

7.2

7.3

7.4

Rough endoplasmic reticulum is the area in a cell where_______are synthesized.

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Saccharomyces

Proteins

Lipids

DNA

An example of bio molecule is.

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Proton

Protein

Iodine

Chlorine

Fats belong to a group of substance called .............. .

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Carbohydrates

Lipid

Protein

Vitamins

The scientists who observed Plasmodium first time in human blood is:

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Aristotle

Bu-Ali-Sina

Laveran

None of these

Ribosomes are present in :

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SER

RER

Both

NOne

When a plant was kept in darkness for many days, many days, its leaves turned yellow. Why?

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Leaves could not get oxygen and so there was no photosynthesis

Leaves could not get light and so there was no respiration

Leaves could not get oxygen and so there was no respiration

Leaves could not get light and so there was no photosynthesis

That gave the name protoplasm to the cell contents.

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Robert brown

Jan Evangelista Purkyne

Scheiden

Schwann

Heart diseases are caused by using:

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Saturated fatty acids

Unsaturated fatty acids

Proteins

Too much carbohydrates

Cellular organization is absent in:

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Viruses

Bacteria

Algae

Protozoans

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