Question # 1

Which one of the following would cause the hardy-weinberg principle to be inacurate?

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The size of the population is very large.

Individual mate with one another at random

Natural selection is present

There is no source of new copies of alleles from outside the population

Cell cycle involves.

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Growth of cell

Replication of DNA

Cell division

None of these

Hypophosphatemic rickets is an _________ trait.

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X - Linked

Y -Linked

X- and Y linked

An autosomal

The period of life cycle of cell between two consecutive divisions is termed as.

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Resting phase

Inter phase

G1 phase

G2 Phase

Activation of sweat glands to produce sweat from evaporative cooling is a type of adaptation.

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Structural

Physiological

Behavioural

None of these

The group of animals whose excretory system is structurally associated with nutritive tract.

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Vertebrates

Earthworm

Insects

Planaria

The study of hman populations and things that affect them is called:

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Angiography

Demography

Mammography

Homography

Tissue culture and cloning seek help through.

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Mitosis

Meiosis

endomitosis

Karyokinesis

A weed called mouse eared cress is engineering produce a biodegradable plastic called.

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Luciferin

Digitoxin

Polyhydroxy butyrate

Pheylalanine

Which animal moves by Jet propulsion

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Earth worm

Star fish

Jelly fish

Snail

Fruit ripening is often accompanied by burst of respiratory activity called.

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Apomixes

Climacteric

Endosperm

Photoperiodism

The most threatened areas on the earth have been reduced to 44% of their original extent are

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Tropical rain forests

Temperate rain forests

Carbiniferous forests

Deciduous rain forests

Recombinant DNA is introduced into the host cell by means of a.

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Vector

Phage

Bacterium

Fungus

Microtubule are composed of

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Myosin

Troponin

Actin

Tubulin

Armadillos the armoured mammals live only in the

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Africa

America

Europe

Asia

A form of air pollution in which airbone acids produced by electric utility plants and other sources fall to Earth in distant regions is

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Acid rain

Basic rain

Heavy rain

Drizzling

Clear cytoplasm produces

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Larval epidermis

Muscle cells

Gut

Neural tube

The random loss of alleles in a population is called:

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Mutation

Selection

Gene flow

Genetic drift

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