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Biology-Prev.Year Repeated Questions
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Question-1
Warm ocean surge of the Peru Current recurring every 5 to 8 years or so in the East Pacific of
South America
is widely known as
(A)
El Nino
(B)
Aye Aye
(C)
Magnox
(D)
Cull stream.
Question-2
The term ‘Meiosis’ was given by
(A)
A. Fleming
(B)
Farme and
Moore
(C)
Johansen
(D)
Knoll and Ruska
Question-3
Which of the following is an example of negative feedback loop in humans
(A)
Secretion of tears after falling of sand particles into the eye
(B)
Salivation of mouth at the sight of delicious food
(C)
Secretion of sweat glands and constriction of skin blood vessels when it is too hot
(D)
Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold
Question-4
Maximum absorption of light occurs in the region of
(A)
1000- 1200 nm
(B)
1500 -2000 nm
(C)
400 - 700 nm
(D)
700 - 900 nm
Question-5
A self-fertilizing trihybrid plant forms
(A)
8 different gametes and 64 different zygotes
(B)
4 different gametes and 16 different zygotes
(C)
8 different gametes and 16 different zygotes
(D)
8 different gametes and 32 different zygotes.
Question-6
The most abundant element present in the plants is
(A)
Carbon
(B)
Nitrogen
(C)
Manganese
(D)
Iron
Question-7
AIDS disease was first reported in
(A)
USA
(B)
France
(C)
Russia
(D)
Germany
Question-8
Employment of hereditary principles in the improvement of human race is
(A)
Euthenics
(B)
Eugenics
(C)
Euphenics
(D)
Ethnology
Question-9
For the first time, the bacteria were observed by
(A)
Robert Koch
(B)
A.V. Leeuwenhoek
(C)
W.H. Stanley
(D)
Louis Pasteur
Question-10
Photosynthetically active radiation (PAR) represents the following range of wavelength:
(A)
500- 600 nm
(B)
450-950 nm
(C)
340-450 nm
(D)
400-700 nm
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Plus 2 Biology Science
CBSE
Practice in Related Chapters
Plant Reproduction
Animal Tissue
Kingdom Monera
Plant Kingdom
Biological Classification
General Biology
Respiratory System
Digestive System And Nutrition
Circulatory System and Immunity
Plant Morphology
Plant Anatomy
Cell Reproduction
Human Genetics & Genetic Disorders
Mendelian & Postmendelian Genetics
Genes & Chromosomes
Biomolecules
Enzymes
Cell Respiration
Cell Respiration
Kingdom Fungi
Aging And Death
Common Human Diseases
Evolution
Drug And Addiction
Reproduction And Embryonic Development
Endocrine System
Excretion And Osmoregulation
Nervous System & Sense Organs
Musculo-Skeletal System
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