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Science and Technology - General Knowledge Questions
A)
A
B)
AB
C)
B
D)
O

Correct Answer : Option (B) - AB

It is called the "universal donor" type because it is compatible with any blood type. Type AB blood is called the "universal recipient" type because a person who has it can receive blood of any type. Although "universal donor" and "universal recipient" types may be used to classify blood in an emergency, blood type tests are always done to prevent transfusion reactions.
 
Minor antigens (other than A, B, and Rh) that occur on red blood cells can sometimes also cause problems. So they are also checked for a match before giving a blood transfusion.

A)
the formation of structures from the neural crest.
B)
a notochord and a dorsal, hollow nerve cord.
C)
an endoskeleton that includes a skull.
D)
jaws adapted for feeding.

Correct Answer : Option (B) - a notochord and a dorsal, hollow nerve cord.

The common characteristics between the tunicates and vertebrates are the presence of a notochord and a dorsal hollow nerve cord. Thus the correct answer is [e], a notochord and a dorsal hollow nerve cord.

A)
maps
B)
cartoons
C)
coins
D)
None of the above

Correct Answer : Option (A) - maps

Cartography, the art and science of graphically representing a geographical area, usually on a flat surface such as a map or chart. It may involve the superimposition of political, cultural, or other nongeographical divisions onto the representation of a geographical area.

A)
Monogamous
B)
Monogenic
C)
Monocots
D)
Monocarpic

Correct Answer : Option (D) - Monocarpic

Bamboo species are monocarpic i.e., flower generally only once in its life-time after 50−100 years.

A)
J. J. Thomson, Ernest Rutherford & James Chadwick
B)
John Dalton, J.J. Thomson & Neils Bohr
C)
Neils Bohr, John Dalton & J.J. Thomson
D)
None of the above

Correct Answer : Option (A) - J. J. Thomson, Ernest Rutherford & James Chadwick

Electron : 02 Discovery of Electron, Proton and Neutron. Electrons were discovered by J.J. Thomson in 1897.
 
Proton : Observed as H⁺ by Eugen Goldstein (1886). Identified in other nuclei (and named) by Ernest Rutherford (1917–1920).
 
Neutron : In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron.

A)
Chlorine
B)
Sponge
C)
Sulphur
D)
Polythene

Correct Answer : Option (C) - Sulphur

Sulfur vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by heating them with sulfur. By this they achieve improved elasticity, resilience, tensile strength, viscosity, hardness and weather resistance.

A)
Androgens
B)
Endorphins
C)
Histamines
D)
Neural regulators

Correct Answer : Option (B) - Endorphins

Pain controlling chemicals in the body are called endorphins. Endorphins are produced by the nervous system and pituitary gland.

A)
Weight
B)
Opposition
C)
Force
D)
None of the above

Correct Answer : Option (C) - Force

In science, a push or a pull on an object is called a force. Thus, we can say that the motion imparted to objects was due to the action of a force.

A)
Specific enzymes breakdown proteins into amino acids
B)
Specific hormones breakdown proteins into complex starches
C)
Specific hormones breakdown proteins into simple sugars
D)
Specific enzymes breakdown proteins into simple sugars

Correct Answer : Option (A) - Specific enzymes breakdown proteins into amino acids

Protein digestion occurs in the stomach and duodenum in which 3 main enzymes :
 
1. Pepsin secreted by the stomach 
2. Trypsin and
3. Chymotrypsin secreted by the pancreas
 
Break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.