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Current Affairs January 2024

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In a gamete there will be

A. one pair of sex chromosomes

B. only one sex chromosome

C. no sex chromosome

D. only autosomes

Correct Answer :

B. only one sex chromosome


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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Leafy trees help in preventing

A. Land pollution

B. Water pollution

C. Noise pollution

D. Air pollution

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Cretinism is due to the disorder of the glands

A. Thymus

B. Parathyroid

C. Thyroid

D. Adrenal

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The deficiency of Vitamin A which leads to poor vision during night is termed

A. nyctolopia

B. myopia

C. glaucoma

D. colour blindness

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Calcium and phosphorus assimilation will depend on sufficient intake of

A. vitamin B complex

B. vitamin D

C. vitamin A

D. vitamin C

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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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Temperature treatment which shortens the vegetative period and hastens the flowering is called

A. Phototropism

B. Photoperiodism

C. Vernalisation

D. Thermoregulation

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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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Bio indicators are

A. stains

B. pH indicators

C. weather indicators

D. soil indicators

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Haemophllia is a genetic disorder which leads to

A. decrease in haemoglobin level

B. rheumatic heart disease

C. increase in haemoglobin level

D. non-clothing of blood

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Edward Jenner to find out the efficacy of vaccination used

A. his own body

B. his friend's body

C. a corpse

D. a laboratory animal

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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 golden age of Dinosaurs was

A. Palaezoic

B. Cenozoic

C. Mesozoic

D. Proterozoic

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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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The specific gravity of blood is

A. lower than water

B. higher than water

C. same as water

D. many times that of water

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1 gm of carbohydrate gives energy which is about

A. 3 k cal

B. 2 k cal

C. 4.2 k cal

D. 8.1 k cal

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The best and easy method of control of crop pests is by

A. crop rotation

B. chemicals

C. quarantine

D. biological control

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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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Bordetella pertussis causes

A. tetanus

B. diphtheria

C. whooping cough

D. rabies

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At the end of a reaction enzymes are

A. left as they are

B. reduced

C. increased

D. neutralised

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Loss of blood is minimized due to blood

A. clotting

B. receding

C. healing

D. drying up

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Riboflavin is otherwise known as

A. vitamin B-complex

B. vitamin B2

C. vitamin A

D. vitamin E

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Baldness is seen only in the males because

A. it is a male disorder

B. it is linked with male Y chromosome

C. it is influenced by male hormone

D. females cover it up with wigs

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Turner's syndrome is a disease caused by

A. bacteria

B. virus

C. fungus

D. chromosomal imbalance

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Blood clotting requires vitamin

A. A

B. B

C. C

D. K

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Loss of blood is

A. clotting

B. receding

C. healing

D. drying up

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The grey matter of the brain is so coloured because of the concentration of

A. nerve cells

B. a pigment

C. nerve fibres

D. melanin

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The hormone which is Popularly called as stress hormone is

A. Epinephrine

B. Cortisone

C. Thyroxine

D. Insulin

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The diseases that are caused by lack of vitamins are called

A. deficiency diseases

B. communicable diseases

C. epidemics

D. tropical diseases

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Bacteria utilising radiant energy to prepare food are

A. chemosynthetic bacteria

B. heterotrophic bacteria

C. photosynthetic bacteria

D. free living bacteria