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Current Affairs January 2024

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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

Correct Answer :

B. Reappearance of traits after several generations


Related Questions

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Veins carry blood

A. towards the heart

B. away from the heart

C. both to and from the heart

D. only around the heart

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The nerve messages enter the cell through the

A. Dendrite

B. Axon

C. Cyton

D. Synapse

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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

When a movement of a plant organ is stimulated by contact with an object, it is termed

A. heliotropism

B. geotropism

C. haptotropism

D. gardening

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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

Scrub jungle Is characterised by

A. heavy rainfall

B. no rainfall

C. poor rainfall

D. none of the above

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4

Small pox is caused by

A. bacteria

B. fungus

C. virus

D. algae

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The scientist who discovered the blood groups is

A. Landsteiner

B. TH Morgan

C. William Harvey

D. Darwin

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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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Haemoglobin is dissolved in the plasma of

A. frog

B. fish

C. man

D. earthworm

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Blood is

A. acidic

B. alkaline

C. neutral

D. like a buffer

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Typhoid is a disease caused by

A. virus

B. bactena

C. fungus

D. animal

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Tuberculosis is caused by

A. tobacco

B. tubers

C. bacteria

D. virus

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Pacemaker is the

A. Sinu-auricular node

B. Auriculo-ventricular node

C. Bundle of His

D. Purkinje fibres

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4

Mendel chose for his experiments the plant

A. Bean

B. Pea

C. Cucumber

D. Rose

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4

Aphids are

A. insect pests

B. fungal pests

C. bacterial pests

D. viral pests

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4

The valve between the right auricle and right ventricle is called

A. Tricuspid

B. Bicuspid

C. Monocuspid

D. Semilunar

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4

Bordetella pertussis causes

A. tetanus

B. diphtheria

C. whooping cough

D. rabies

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4

Malaria is transmitted from one person to another by

A. bad air

B. flies

C. anopheles mosquito

D. culex mosquito

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4

An inherited characteristic which does not appear in one generation but can appear in the next is called

A. dominant

B. recessive

C. homozygous

D. heterozygous

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4

The biologist who believed in the spontaneous creation of microorganisms was

A. Leuwenhock

B. Needham

C. Spallanzeni

D. Pasteur

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The 'germ theory of disease' was propounded by

A. Joseph Lister

B. Robert Koch

C. Louis Pasteur

D. Jacob Heule

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The bacteria that gets into our body is consumed by

A. RBC

B. Blood platelets

C. Plasma

D. Phagocytes

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4

Hypogeal germination is found in

A. castor

B. onion

C. bean

D. bengal gram

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4

Who discovered the electron microscope?

A. Knoll and Ruska

B. Rudolf and Kolliker

C. Robert Hooke

D. CP Swanson

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4

The gestation period for the elephant is

A. 10 months

B. 15 months

C. 22 months

D. 30 months

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4

Which one is called anti-haemorrhagic vitamin?

A. A

B. C

C. E

D. K

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4

Athlete's Coot is the common name for the fungal disease

A. Tinea pedis

B. Tinea cruris

C. Tinea corporis

D. Tinea capitis

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4

Hormone promoting maleness in flowering plants is

A. Indole Acetic Acid

B. Kinetin

C. Cytokinin

D. Gibberellin

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The natural defence of our body against foreign germs is formed by

A. red corpuscles

B. white corpuscles

C. platelets

D. lymph