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The biogenetic law was proposed by

A. Alfred Russel Wallace

B. Charles Darwin

C. Ernst von Haeckel

D. Lamarck

Correct Answer :

C. Ernst von Haeckel


Related Questions

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What is an antigen?

A. toxic substance

B. a kind of protein

C. blood platelets

D. blood corpuscles

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4

Light compensation zone refers to

A. where light is available in plenty

B. where all light energy is used

C. where light is maximum

D. beyond which light does not penetrate

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4

Louis Pasteur developed the vaccine for ______ for the first time.

A. smallpox

B. cowpox

C. tetanus

D. chicken cholera

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4

Maintenance of pregnancy is under the control of

A. follicular stimulating hormone

B. growth hormone

C. estrogen

D. progesterone

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4

Colour vision is made possible by the cells in the retina called

A. rods

B. cones

C. fovea

D. blind spot

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4

Foal' is the young on of the

A. Cat

B. Lion

C. Tiger

D. Horse

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Which organelle in the cell, other than nucleus, contains DNA?

A. Centriole

B. Golgi apparatus

C. Lysosome

D. Mitochondrion

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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

Lymphocytes are manufactured by

A. bone marrow

B. spleen

C. liver

D. lymph nodes

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4

The geotropism of the roots that makes them grow towards gravity is said to be

A. positive

B. negative

C. neutral

D. oblique

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4

Cretinism is due to the disorder of the glands

A. Thymus

B. Parathyroid

C. Thyroid

D. Adrenal

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4

The plant hormone which promotes ripening of fruits is

A. auxin

B. ethylene

C. gibberellin

D. cytokinin

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4

The closing and opening of the leaves of Mimosa pudica (Touch me not) plant is due to _______ movement.

A. chemonastic

B. seismonastic

C. thermonastic

D. photonastic

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4

Heart is made up of

A. nonstriated muscle

B. cardiac muscle

C. connective tissue

D. nervous tissue

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4

The cellular and molecular control o( programmed cell death is known as

A. Apoptosis

B. Ageing

C. Degeneration

D. Necrosis

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4

Blood platelets are found in

A. all vertebrates

B. all chordates

C. mammals only

D. birds and mammals

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4

Savannah is

A. grass land

B. desert

C. forest

D. snow clad mountains

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A plant cell is distinguishable from an animal cell by the presence of

A. nucleus

B. cell wall

C. chloroplasts

D. cell membrane

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Phenylketonuria is an example of an inborn error of metabolism. Thins error refers to

A. hormonal overproduction

B. atrophy of endocrine glands

C. inherited lack of an enzyme

D. nondisjuction of chromosomes

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4

The method of inducing artificial immunity was discovered by

A. Jenner

B. Tolstoy

C. Pasteur

D. Morgan

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4

The human heart is

A. Neurogenic heart

B. Myogenic heart

C. Pulsating heart

D. Ampullary heart

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4

Blood clotting requires vitamin

A. A

B. B

C. C

D. K

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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

Plant diseases are spread by

A. insects

B. man

C. wind

D. All the above

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The theory that all animals and plants are made up of cells and they could arise only from pre-existing cells was propounded by

A. Robert Hooke

B. Matthias Schleiden and Theodore Schwann

C. Purkinije

D. Leuwenhoek

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4

When does the heart start functioning?

A. At birth

B. After birth

C. Before birth

D. After a week from birth

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Which one of the following is essential for blood clotting?

A. RBC

B. WBC

C. Blood platelets

D. Lymph

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4

Infection of salivary glands by a virus leads to

A. tetanus

B. mumps

C. pyorrhoea

D. ulcers

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4

Whale reproduces by

A. ovipary

B. vivipary

C. ovovivipary

D. fission

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4

Vaccine for influenza has been discovered by

A. Khorana

B. John

C. Mittel

D. Salk