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What does Deoxyribonucleic acid commonly known as ?

DNA
Genes
RNA
Chromosomes

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It is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms.

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How many poles does a magnet have ?

1
2
3
4

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Identify the symbol ?

lamda.png
Alpha
Beta
Gamma
Lamda

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How many valves does a human heart have ?

1
2
3
4

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The valves are categorized into atrioventricular (AV) valves and semilunar (SL) valves. atrioventricular (AV) valves contains Mitral valve and Tricuspid valve while semilunar (SL) valves contains Aortic valve and Pulmonary valve.

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Which planet is known as hottest planet in our solar system ?

Earth
Venus
Saturn
Jupitar

Venus.jpg

It is the second-closest planet to the Sun.It is Classified as a terrestrial planet and sometimes called Earth's 'sister planet'. Venus has the densest atmosphere of all the terrestrial planets. Mercury, Venus, Earth and Mars are known as terrestrial planets

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Who was the first living being sent in space ?

A Mouse
A Dog
A Cat
A Monkey

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A Dog called as Laika from russia became the first living being sent in space on November 3, 1957.

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What is the abbreviation of 'DNA' ?

Deoxyribonatural acid
Deoxyribonucleic acid
Deoxyribonano acid
Deoxyribonucleous acid

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It is the hereditary material in humans and almost all other organisms. The main role of DNA molecules is the long-term storage of information. It consists of two long polymers of simple units called nucleotides,which strands run in opposite directions to each other and are therefore anti-parallel.

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What is the chemical symbol of Potassium ?

Pt
P
K
L

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It is the 19th element in periodic table having an atomic mass 39.0983. Potassium in nature occurs only as ionic salt. As such, it is found dissolved in seawater, and as part of many minerals.

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Which organism is associated in making the soil fertile ?

Ringworm
Rats
Earthworm
None of the above

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They convert a large pieces of organic matter into rich humus, and thus improve soil fertility.

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Which only metal remains liquid at standard conditions for temperature and pressure ?

Water
Mercury
Glucose
Silica

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Mercury(Hg) is also known as quicksilver.It is one of six chemical elements that are liquid at or near room temperature and pressure , the others being caesium, francium, gallium, bromine, and rubidium.

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