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Current Affairs January 2024

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Which one of the ecosystems Is the largest in the world?

A. forests

B. rivers

C. deserts

D. oceans

Correct Answer :

D. oceans


Related Questions

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The genetic code DNA is carried from the nucleus to Ribosome by

A. t-RNA

B. r-RNA

C. S-DNA

D. ATP

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Which of the following plays an important part in photosynthesis?

A. Chloroplast

B. Centrosome

C. Tonoplast

D. Nematoblast

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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 part of the human brain concerned with sight is the

A. Frontal lobe

B. Parietal lobe

C. Temporal lobe

D. Occipital lobe

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The biogenetic law was proposed by

A. Alfred Russel Wallace

B. Charles Darwin

C. Ernst von Haeckel

D. Lamarck

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Dwarf plants can be made to attain their normal stature by applying

A. IAA

B. Ethylene

C. Gibberelins

D. Cytokinins

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Which one is a water-soluble vitamin?

A. A

B. C

C. D

D. E

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Tetrodotoxin is a potent poison that

A. erodes blood vessels

B. blocks conduction of nerve impulses causing respiratory paralysis

C. produces damage to the kidneys

D. produces intestinal bleeding

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The protein synthesis takes place in

A. Ribosomes

B. Chromosomes

C. DNA

D. None of these

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Hypogeal germination is found in

A. castor

B. onion

C. bean

D. bengal gram

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Kwashiorkar is characterised by

A. dermatitis, changes in hair pigments and retarded brain growth

B. excretion of creatine in excess

C. tyrosinosis and alcaptonuria

D. None of these

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The artificial kidney operates on the principle of

A. dialysis

B. diffusion

C. osmosis

D. active transport

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In one minute normally the heart beats

A. 60 times

B. 80 times

C. 100 times

D. 72 times

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Kangaroo is one of the animals popularly called as

A. egglaying

B. pouched

C. placental

D. Volant

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The Green Revolution in India owes much to

A. MS Swaminathan

B. TS Venkataraman

C. Norman Borlaug

D. Prime Minister

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Memory is the responsibility of

A. cerebrum

B. cerebellum

C. medulla oblongata

D. spinal cord

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Sadabahar, a common weed, is the raw material that provides the source of medicines used In the treatment of

A. gout

B. blood cancer

C. coronary heart disease

D. polio

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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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Digestion of proteins starts in the

A. mouth

B. stomach

C. duodenum

D. intestine

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Plant diseases are spread by

A. insects

B. man

C. wind

D. All the above

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Most of the enzymes are

A. proteins

B. lipids

C. acids

D. alkalis

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Saffron is the dried ________ of the saffron plant.

A. fruit

B. aril

C. stigmas and tops of styles

D. tender leaves and sprouts

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Herbivores are

A. primary consumers

B. secondary consumers

C. tertiary consumers

D. decomposers

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The metallic part in haemoglobin is

A. Copper

B. Molybdenum

C. Nickel

D. Iron

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Genes are made of

A. Carbohydrates

B. Proteins

C. Fats

D. Nucleotides

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Which of the following diseases is not caused by a virus?

A. Cancer

B. Rabies

C. AlDS

D. Severe Acute Respiratory Syndrome (SARS)

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The grouping o( blood is based on substances called

A. antibodies

B. antigens

C. antitoxin

D. enzymes

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A biopsy is performed on a patient generally to detect which one of the following?

A. Cancer

B. Tuberculosis

C. Appendicitis

D. Renal failure

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Maintenance of pregency is under the control of

A. Follicular stimulating hormone

B. Growth hormone

C. Estrogen

D. Progesterone

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Blood plasma from which fibrinogen is removed is known as

A. serum

B. blood concentrate

C. lymph

D. antibody component