Question # 1

When expression of a biological character is observed in variable intensity, it is due to the efect of:

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Multiple alleles

Codominance

Epitasis

Polygenic inheritance

In tomato and pappers, parthenocarpy is artificially induced by adding.

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Auxins

Cytokinins

Abscisic Acid

Ethene

The wall of trachea(windpipe) and bronchi of man is fernished with a series of incomplete:

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Cartilagenous plates

Chitinous rings

Cartilaginous rings

Muscular rings

If all members of a population are homozygous for the same allele that allele is said to be

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Multiple allele

Jumping gene

Fixed in the gene

Perfect gene

In spermatophytes important step in land adaptation is the evolution.

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Seed coat

Fruit

Pollen tube

Flower

The mammalism forebrain is differetiated into the thalamus, imbic system and the:

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Cerebellum

Cerebrum

Hippocampus

Hypothalamus

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

The fishes which drink large amount of sea water and excrete concentrated urine are.

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Cartilaginous fishes

Bony fishes

Lung fishes

Jawless fishes

All of the following are day neutral plants except.

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Pea

Wheat

Maize

Cotton

Transfer of genetic material from one cell to other that can alter the genetic make up of recipient cell is called.

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Transcription

Replication

Translation

Transformation

Karyb. Mullis developed the polymerase chain reaction in.

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1963

1973

1983

1993

Lichen is a symbiotic association between a fungus and.

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Gymnosperm

Angiosperm

An alga

Pterrdophyta

O blood has neither A or B antigen but it does have

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Anti - A antibodies

Anti - B antibodies

Anti - O antibodies

Both a & b

A strand of DNA, which is not transcribed is called as.

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Template strand

Antisense strand

Lagging strand

coding strand

Resting membrane potential of a neuron is

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50 mv

-70 mv

-60 mv

-80 mv

If a man of M blood group marries a woman of N blood group all their childern will have blood group

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MM

NN

MN

None of these

Hemoohilia is.

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Affects both sexes equally

Affects men more than woman

Affects women more than men

Is non allelic recessive sex linked

Rapid movement of leaves of mimosa on touching is a example of.

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Turgor movement

Tropic movement

Nastic movement

Growth movement

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