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Question-1
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-2
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-3
For the first time, the bacteria were observed by
(A)
Robert Koch
(B)
A.V. Leeuwenhoek
(C)
W.H. Stanley
(D)
Louis Pasteur
Question-4
The term ‘Meiosis’ was given by
(A)
A. Fleming
(B)
Farme and
Moore
(C)
Johansen
(D)
Knoll and Ruska
Question-5
During viral infection the protein formed in host cells to resist is
(A)
Interferon
(B)
Antitoxin
(C)
Antibody
(D)
Histone
Question-6
Flagella of prokaryotic and eukaryotic cells differ
in
(A)
Type of movement and placement in cell
(B)
Location in cell and mode of functioning
(C)
Micro tubular organization and type of movement
(D)
Micro tubular organization and function.
Question-7
The term “antibiotic” was coined by
(A)
Edward Jenner
(B)
Louis Pasteur
(C)
Selman Waksman
(D)
Alexander Fleming
Question-8
The 1992 Nobel Prize for medicine was awarded to Edmond H. Fischer and Edwin G. Krebs for their work concerning
(A)
Reversible protein phosphorylation as a biological regulation mechanism
(B)
Isolation of the gene for a human disease
(C)
Human genome project
(D)
Drug designing involving inhibition of DNA synthesis of the pathogen.
Question-9
Recently Govt. of
India
has followed mixing of alcohol in petrol. What is the amount of alcohol permitted for mixing in petrol?
(A)
2.5%
(B)
10-15%
(C)
10%
(D)
5%
Question-10
. Due to discovery of which of the following in 1980, the evolution was termed as RNA world
(A)
m—RNA, t-RNA, r-RNA synthesis proteins
(B)
in some viruses RNA is genetic material
(C)
RNA has enzymatic property
(D)
RNA is not found in all cells.
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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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