Question # 1

The corpus luteumscetres a hormone called.

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Oxytocine

Progestrone

Testostrone

Ostrogen

Chromosomal theory of inheritance was first formulated by.

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Karl Correns

T.H.Morgan

W. Sutton

Carvin Bridges

In nature P 730 to P 660 conversion occurs in the

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Day

Dark

Evening

Dawn

The best way to increase food production from ecosystem view point is:

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To increase cultivable land by clearing forest

Use of excessive fertilizers

Use of high quality pesticides

Use of genetically improved varieties of seeds

The copping of mRNA from DNA is called.

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Translation

Transduction

Transcription

Transformation

In oceans especially in tropical regions temperature of surface water is about

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10^oC

15^oC

25^oC

35^oC

In humans ,MSH(melanocyte-stimulating hormone) ___________

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Regulates primary skin color

Causes the thyroid to produce thyroxin

Governs the rate of tarming

Concentration is very low.

Example of day Neutral plant is.

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Tomato

Xanthium

Soyabean

Chrysanthium

The ultimate source of change is.

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Evolution

Mutation

Genetic drift

Migration

Adult transgenic tobacco plants glowed when sprayed with the substrate

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Luciferon

Luciferin

Luciferol

Luciferase

80% haemophiliacs suffer from haemophilia A due to abnormality of factor

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VIII

IX

X

XI

In living thing, the behavior activities occurs at regulars intervals which are called.

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diumal rhythms

Blorhythms

Circannual

Orcadian

In xerosere, polytrichum and tortula represent.

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Herbaceous stage

Moss stage

Follage lichen stage

Crustose lichen stage

Biome is a

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Simple community

Complex community

Regional community

Climax community

The first restriction enzyme was isolated by.

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Kary mulis

Hamilton O smith

Maxam Gilbert

Sanger

The living cells of cartilage are called

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Cridocytes

chondrocytes

Blastocysts

Nematocytes

Germination of some seeds e.g. some lettuce varieties, is promoted by.

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Green light

Blue light

Red light

Violet light

Insulin and glucagon hormones are _________ in nature.

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Carbohydrates

Proteins

Polypeptides

Streoids

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