Question # 1

Jean Baptiste Lamarck published his theory of evolution in

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1757

1809

1859

1945

Incomplete dominance was discovered by 4 '0 clock olant in 1899 by.

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devries

Jhannsen

Carl correns

Tscharmach

Downs syndrome (Mongolism) occurs in man during which 21^st chromosome falls to segregate resulting gamete with

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20 chromosomes

21 chromosomes

22 chromosomes

24 chromosomes

The corpus luteum is formed at the site of

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Fertilization

Ovulation

Mensturation

Implantation

The interaction between different genes occupying different loci is

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Pleiotropy

Epistasis

Bombay phenotype

Linkage

A clear picture of the genetic basis of sex determination emerged after the discovery of

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Autosomes

X chromosomes

Sex chromosomes

Y chromosomes

Interphase can further be divided into

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G₁-phase,S-phase and G₂-phase

G₁-phase,G₂-phase and G₃-phase

S₁-phase,S₂-phase and S₃-phase

S₁-phase,G-phase and S₂-phase

Human lungs are spongy due to the presence of million of:

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Bronchi

Alveoli

Bronchioles

Trachea

Only 30% of the earth is dry land the remainder being covered with

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Water

Air

Trees

Grass

In case of overheating the body temperature is regulated by:

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More sweating and more urination

Less sweating and more urinattion

Less sweating and less urinattion

Apical dominance is cause by.

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Gibberellins

Cytokinins

Auxins

Ethene

The two different places of DNA joined together is called as.

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Dimeric DNA

Chimeric DNA

Trimeric DNA

Tetrameric DNA

In nature to p730 conversion occurs in.

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Light

Evening

Morning

Dark

Interatrial vertebrates, the gill pouches develop into.

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Gills

Lungs

Nose

Eustachian tube

The sensation of pain is produced by

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Chemoreceptors

Photoreceptors

Nociceptors

Mechanoreceptors

Positive gravitropism of root is due to.

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Auxin

gibberellin

Abscisic acid

Ethene

It is estimated that human genome could take an encyclopaedia of 200 volumes each with

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10 pages

100 pages

1000 pages

10,000 pages

The addrenaline cortex produces ______________

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Adrenaline

Calcitonin

Epinephrine

Aldosterone

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