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4

What are oncogenes?

A. a dominant gene

B. a set of genes which produce cancer

C. a gene present in the X-chromosomes causing haemophilia

D. a recessive gene

Correct Answer :

B. a set of genes which produce cancer


Related Questions

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4

It is possible to produce seedless tomato fruits by

A. applying trace elements in tomato fields

B. spraying mineral solution on plants

C. spraying harmones on flowers

D. applying fertilizers containing radioactive elements

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4

Vitamins A and C are predominantly present in

A. brinjal

B. lady's finger

C. potato

D. tomato

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4

Loss of blood is minimized due to blood

A. clotting

B. receding

C. healing

D. drying up

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4

The pathogenic organisms of an infected person are destroyed by the action of

A. erythrocytes

B. leucocytes

C. blood platelets

D. all of these

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4

Organisms that live in the deep sea are mainly

A. Herbivores

B. Carnivores

C. Detritivores

D. None of the above

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4

Biological control is to check growth of

A. plants

B. animals

C. weeds

D. one pest by another

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4

The science of improving the hereditary qualities of future generations of mankind is referred to as

A. genetics

B. eugenics

C. epigenesist

D. epistasis

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4

Synthesis of nutrients by green plants is called

A. photo-oxidation

B. photo-respiration

C. photo-synthesis

D. photo-periodism

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4

Kangaroo is one of the animals popularly called as

A. egglaying

B. pouched

C. placental

D. Volant

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4

Turner's syndrome is a disease caused by

A. bacteria

B. virus

C. fungus

D. chromosomal imbalance

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4

Evergreen forests are confined to

A. Equatorial region

B. Temperate region

C. Alpine region

D. Arctic region

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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

Milk fever in cows occurs due to lack of

A. Phosphates

B. Calcium

C. Iron

D. Iodine

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4

The enzyme that is necessary to bring about clotting of blood is

A. peptidase

B. amylase

C. lipase

D. thrombokinase

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4

What is 'atavism'?

A. The genes which show numerous phenolypic effects

B. Reappearance of traits after several generations

C. Effects of mutation

D. Intermediate inheritance of genes

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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 normal systolic blood pressure is

A. 140

B. 120

C. 180

D. 80

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4

Genes are made of

A. Carbohydrates

B. Proteins

C. Fats

D. Nucleotides

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4

In plants water is carried upwards by

A. phloem

B. paranchyma

C. xylem

D. meristem

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4

Injection of insulin causes

A. increase in glucose in blood

B. decrease in glucose in blood

C. increase in blood pressure

D. decrease in blood pressure

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4

The function of ribosomes is

A. Secretion

B. Excretion

C. Power house of the cell

D. Protein synthesis

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4

Which one of the following cells helps in storing water and food materials?

A. Parenchyma cell

B. Flame cell

C. Nematoblast

D. None of the above

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4

Vivipary is defined as germination

A. during storage

B. within the fruit

C. with cotyledons coming out of soil

D. with cotyledons remaining inside the soil

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4

The two German scientists who proposed the 'cell theory' were

A. Mendel and 'Darwin

B. Theodore Schwann and Matthias Schleiden

C. Virchow and Purkinje

D. porter and Palade

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4

The plant that is dispersed with the help of water is

A. mango

B. coconut

C. teak

D. paddy

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4

Which element in chillies causes burning sensations?

A. Capsaicin

B. Cyanogen

C. Ammonia

D. Capsicum

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4

Mutations could be created by X-rays. This was found by

A. Muller

B. Morgan

C. Meyer

D. Flemming

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4

Blood pressure is measured by

A. Auxanometer

B. Stethoscope

C. Sphygmomanometer

D. Kaleidoscope

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4

Legumes are highly nutritious because they are rich in

A. starch

B. oils

C. fat

D. protein

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4

The smallest size of a cell which can be seen directly by the eye is

A. One micron

B. 10 micron

C. 100 micron

D. 1000 micron