Question # 1

Resting membrane potential of a neuron is

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50 mv

-70 mv

-60 mv

-80 mv

During gastrulation the blastoderm splits into two layers, an upper layer of cells is called.

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Hypoblast

Area pellucida

Epiblast

Area Opaca

DNA threads are chemically cut into pieces of different sizes in

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Maxam-Gilbert method

Sanger's method

Smith's method

Sanford's method

Maximum speed of nerve impulse transmission is

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100 m/s

110 m/s

120 m/s

130 m/s

Once nitrate enters the plant cell it is reduced to.

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Nitrite

Ammonia

Carbohydrate

Proteins

Shape of the plant cell does not change greatly compared with an animal cell because it is surrounded by a rigid

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Cell membrane

Capsule

Sheath

Cell wall

Arthritis covers over 100 different types of inflammatory or degenerative diseases that damage the

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Legs

Arms

Sutures

Joints

The enzyme which joins the two pieces of DNA is

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DNA polymerase -I

DNA ligase

Restriction endonuclease

DNA polymerase -I

A natural process in which surface soil is removed by the action of water or wind is

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Corrosion

Attrition

Erosion

Weathering

In test cross, heterozygous produces.

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All round

50,50

All wrinkle

None of these

The total gestation period in human female is usually about.

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280 days

280 week

28 months

360 days

The no of chromosome in mouse is

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6

32

26

40

The human egg is swept through the oviduct toward the uterus by:

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The beating of the egg's cilia

Rhythmic contraction of the uterus

Rhythmic contraction of the oviduct

The beating of the cilia in the oviduct

In 1901, ABO grop system was discovered by.

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Punnet

Karl Landsteiner

Wiener

Bern Stein

CNS is composed of

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Sensory neuron

Associative neuron

Dendrites

Motor neuron

Adult transgenic tobacco plants glowed when sprayed with the substrate

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Luciferon

Luciferin

Luciferol

Luciferase

Cockroach excrete nitrogenous wastes it the form

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Ammonia

Urea

Uric Acid

Allantioin

The pigment free area that appears at the time of fertilization is called.

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embryo

Gray crescent

Yolk

White cytoplasm

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