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Current Affairs January 2024

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Plant diseases are spread by

A. insects

B. man

C. wind

D. All the above

Correct Answer :

D. All the above


Related Questions

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Eugenics is the application of genetics to improve

A. crop plants

B. fruit trees

C. cattle

D. human beings

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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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Organisms that live in the deep sea are mainly

A. Herbivores

B. Carnivores

C. Detritivores

D. None of the above

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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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The 'mad-cow disease' (Jakob-Creutzfeldt disease) is produced by certain

A. bacterium

B. virus

C. viroid

D. prion

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The aphotic zone means that light is

A. always present

B. present during day

C. always absent

D. present during night

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Vitamin D is known as anti-rachitic vitamin because it cures the deficiency disease called

A. Rickets

B. Beriberi

C. Xerophthalmia

D. Sterility

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Who was the first scientist/doctor who attempted vaccination?

A. Joseph Lister

B. Robert Koch

C. Elie Metchnikoff

D. Edward Jenner

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Late blight of potato is caused by

A. Puccinia

B. Pennisetum

C. Phytophthora

D. Erysiphe

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Vaccine for influenza has been discovered by

A. Khorana

B. John

C. Mittel

D. Salk

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Fledgling is a term often used to denote the young one of a

A. bird

B. fox

C. dog

D. man

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

A. Apoptosis

B. Ageing

C. Degeneration

D. Necrosis

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Biocatalysts are

A. hormones

B. vitamins

C. enzymes

D. pheromones

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Life begets life' or biogenesis was stated by

A. Robert Koch

B. Miller

C. Louis Pasteur

D. Lord Lister

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Who is called the father of modem antiseptic surgery?

A. Edward Jenner

B. Joseph Lister

C. Louis Pasteur

D. William Harvey

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Sexual selection theory was propounded by

A. Wallace

B. De Vires

C. Lamarck

D. Charles Darwin

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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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Necrosis is a symptom which is recognised by

A. pattern colouration on leaves

B. little leaves

C. out growth

D. death of tissues

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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

In movable joints the tips of the bones are covered with

A. hyaline cartilage

B. calcified cartilage

C. elastic cartilage

D. fibrous cartilage

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Insect pollination is known as

A. Hydrophily

B. Ornithophily

C. Anemophily

D. Entomophily

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Oxygen transport is a function of

A. White Blood Corpuscles

B. Red Blood-Corpuscles

C. Blood Platelets

D. Plasma

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The endocrine glands secrete

A. bile

B. harmones

C. sweat

D. genes

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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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The disease Goitre is caused in persons who do not have in their diet sufficient

A. calcium

B. sodium

C. iodine

D. iron

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Foal' is the young on of the

A. Cat

B. Lion

C. Tiger

D. Horse

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What do you mean by lentic biota?

A. Plants and animals in lakes and ponds

B. Plants and animals in forest

C. Plants and animals in sea water

D. Desert plants and animals

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Which of the following crops helps in nitrogen fixation?

A. Rice

B. Wheat

C. Maize

D. Beans

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4

Ecology of a population is known as

A. demecology

B. synecology

C. autecology

D. space ecology

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Leafy trees help in preventing

A. Land pollution

B. Water pollution

C. Noise pollution

D. Air pollution