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4

Polyploid wheat does not normally show an increase in

A. size

B. vigour

C. length of the life cycle

D. resistance to desease

Correct Answer :

C. length of the life cycle


Related Questions

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4

Most of the enzymes are

A. proteins

B. lipids

C. acids

D. alkalis

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4

Dialysis is used when there is a failure of

A. heart

B. lungs

C. liver

D. kidneys

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4

Accepted theory for the origin of life is

A. Cosmozoic theory

B. Biogenesis

C. Abiogenesis

D. Oparin's theory

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4

The hypothesis that living matter originated in the past from non-living matter is supported by

A. Fossil records

B. Miller's experiments

C. Pasteur experiment

D. Spallanzeni experiment

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4

Blood of cockroach is

A. red

B. bluish

C. greenish

D. colourless

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4

Nephantis is popularly called

A. coconut caterpillar

B. brown plant hopper

C. tobacco caterpillar

D. pulse beetle

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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

What is the other name for the brain?

A. myelon

B. encephalon

C. cephalon

D. All the above

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4

The association between leguminous plants and bacteria is

A. parasitic

B. saprophytic

C. symbiotic

D. None of the above

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4

The heart of the human embryo starts beating in the _____ week of its development.

A. second

B. third

C. fourth

D. first

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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

Excess carbohydrates and insufficient proteins in dally diet will lead to

A. Kwashiorkor

B. Night blindness

C. Pernicious anaemia

D. Loss of hair

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4

Blood is a kind of

A. epithelial tissue

B. connective tissue

C. nervous tissue

D. cartilage

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4

The organ that produces antibodies in our body is

A. pancreas

B. salivary gland

C. liver

D. gonads

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4

Bats can fly in the dark because

A. they have a better vision in the dark

B. the light startles them

C. they produce high pitched sounds called ultrasonics

D. None of the above

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4

The influenza vaccine was discovered by

A. Salk

B. Khorana

C. Mittel

D. None of the above

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4

The energy for the sperm to swim and reach the egg is provided by

A. tail

B. head

C. neck

D. mitochondria

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4

Blood plasma from which fibrinogen is removed is known as

A. serum

B. blood concentrate

C. lymph

D. antibody component

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4

Oxygen transportation in human body takes place through
1) Blood
2) Lungs
3) Tissue
The correct sequence of transportation is

A. 1, 2 and 3

B. 3, 1 and 2

C. 2, 1 and 3

D. 1,3 and 2

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4

Insect pollination is known as

A. Hydrophily

B. Ornithophily

C. Anemophily

D. Entomophily

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4

What are halophytes?

A. plants found in fresh water

B. plants growing in saline conditions

C. mesophytic plants

D. desert plants

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4

Cancer is induced by certain viruses called

A. poxviruses

B. adenoviruses

C. oncogenic viruses

D. herpesviruses

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4

The life cycle of Malarial Parasite consists of two phases in man. Where do they occur?

A. In RBC and liver cells

B. In WBC and RBC

C. In lymph

D. In gall bladder and pancreas

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4

The buffer substance in blood is

A. Calcium carbonate

B. Carbon dioxide

C. Sodium bicarbonate

D. Ammonia

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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

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4

From the end of the Triassic to the cretaceous period the earth was ruled by

A. eurypterids

B. cotylosaurs

C. dinosaurs

D. mammals

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4

A person with a blood group ____ is considered to be an universal donor.

A. A Positive

B. AB Positive

C. AB Negative

D. O Positive

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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 of the following crops helps in nitrogen fixation?

A. Rice

B. Wheat

C. Maize

D. Beans

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4

The tear glands help us in

A. sobbing

B. protecting the eye

C. preventing dust

D. providing a clean moist surface