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4

Dwarf plants can be made to attain their normal stature by applying

A. IAA

B. Ethylene

C. Gibberelins

D. Cytokinins

Correct Answer :

C. Gibberelins


Related Questions

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The endocrine glands secrete

A. bile

B. harmones

C. sweat

D. genes

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4

Digestion of proteins starts in the

A. mouth

B. stomach

C. duodenum

D. intestine

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4

An organism eating its own species is called

A. carnivore

B. detritivore

C. cannibal

D. herbivore

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The counting of RBC's can be performed by

A. Haemocytometer

B. Haemoglobinometer

C. Clinostat

D. Thermometer

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4

The 'germ theory of disease' was propounded by

A. Joseph Lister

B. Robert Koch

C. Louis Pasteur

D. Jacob Heule

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4

Warm-bloodedness

A. means, animals living in warm climates

B. means, the warming up of blood as the temperature increases during day time

C. is characterised by constant body temperature

D. is shown by reptiles

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4

Intravascular clotting of blood is known as

A. anaemia

B. leucopenia

C. thrombosis

D. thrombin

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4

Organisms that depend only on raw plant products are said to be

A. herbivorous

B. vegetarian

C. carnivorous

D. omnivorous

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4

The golden age of Dinosaurs was

A. Palaezoic

B. Cenozoic

C. Mesozoic

D. Proterozoic

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4

Which among the following is a Cast growing tree?

A. Teak

B. Eucalyptus

C. Banyan

D. Coconut

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4

The part of the brain which is responsible for intelligence is

A. cerebrum

B. opthalmic

C. cochlea

D. semicircular canals

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4

Plants growing in sunlight are called

A. sciophytes

B. hydrophytes

C. xerophytes

D. heliophytes

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4

Diabetes is a disease which is

A. contagious

B. non-communicable

C. communicable

D. epidemic

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4

Insects that make a clicking sound are

A. crickets

B. beetles

C. flies

D. silver fish

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4

The blood without corpuscles is called

A. bile

B. lymph

C. plasma

D. blood

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4

Two tall plants, each being a hybrid and carrying a recessive factor for dwarfness are crossed. What proportion of their offspring will be dwarf?

A. 0.5

B. 0.25

C. 0.75

D. 1

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4

Which one of the following is both an exocrine and an endocrine gland?

A. Gastric glands

B. Pancreas

C. Salivary glands

D. Liver

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4

The most accepted theory of the origin of earth is the fiery origin which was propounded by

A. Laplace

B. Chamberlain

C. James Jean

D. Hoyle

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4

Which hormone is secreted when there is a rise in the blood glucose level?

A. Glucagon

B. Insulin

C. Nor-adrenaline

D. Thyroxine

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4

Hypogeal germination is found in

A. castor

B. onion

C. bean

D. bengal gram

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4

Which one of the following is not caused by bacteria?

A. Tuberculosis

B. Typhoid

C. Cholera

D. Mumps

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4

Which one of the following was probably absent in the atmosphere at the time of origin of life?

A. Ammonia

B. Oxygen

C. Hydrogen

D. Carbon

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4

Adaptation for flying is termed as

A. aquatic

B. volant

C. fossorial

D. cursorial

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4

The suggestion that the chromosomes are the carriers of hereditary material was first made by

A. Johanson

B. Flemming

C. Sutton and Boveri

D. Morgan

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4

The first sign of life made its appearance on the earth about

A. 1 million years ago

B. 500 million years ago

C. 1 billion or 1000 million years ago

D. 3 billion years ago

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4

Which among the following is a communicable disease?

A. Beri Beri

B. Diabetes

C. Leucoderma

D. Dysentery

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4

Life begets life' or biogenesis was stated by

A. Robert Koch

B. Miller

C. Louis Pasteur

D. Lord Lister

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4

The specific gravity of blood is

A. lower than water

B. higher than water

C. same as water

D. many times that of water

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4

The disease in which blood clotting does not take place is known as

A. Xerophthalmia

B. Haemopoeisis

C. Haemophilia

D. Haemoerythrin

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Genes are arranged in chromosomes

A. In clusters

B. In binary fashion

C. In linear fashion

D. Scattered