Question # 1

Chromosoems are made of.

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DNA only

DNA, Proteins and fats

Proteins only

DNA, and proteins

Which fo these is NOT a genetic variation.

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Attached earlobes

Blood group

Eye colour

Mark of cut on skin

Each datugher DNA contains one new strand and one strand of ........... DNA.

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Parent

Sister

Daughter

Grand parents

Baking soda, calcium carbonate, glycerin, fluorides are usually used for making.

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Soaps

Detergents

Tooth paste

Banaspati ghee

Coordination betwene the parts of body is called.

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Nerous system

Organ system

PNS

CNS

Which factor is responsible for ecological imbalance.

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Over hunting

Change in water supply

Migration

All these

During the combustion of fossil fuel. Which gas is ener the atmosphere.

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Nitrogen

Oxygen

Carbon di oxide

Hydrogen

Telescope on the Earth suffers from the defect that light coming from the stars has to pass through.

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Space

Water

Atmosphere

Clouds

Law of conservation of mass put forward in.

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1783

1784

1785

1786

Allowy is ......... forms of metals mixed together.

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Solid

Gas

Normal

Molten

An event that occurs during interphase.

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Division of nuclesu

Duplication of chromosomes

Division of cytoplasm

Formation of cell wall

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