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Question-1
. 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.
Question-2
The tailed Bacteriophages are
(A)
Motile on surface of bacteria
(B)
Non-motile
(C)
Motile on surface of plant leaves
(D)
Actively motile in water
Question-3
The term ‘Meiosis’ was given by
(A)
A. Fleming
(B)
Farme and
Moore
(C)
Johansen
(D)
Knoll and Ruska
Question-4
The term “antibiotic” was coined by
(A)
Edward Jenner
(B)
Louis Pasteur
(C)
Selman Waksman
(D)
Alexander Fleming
Question-5
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-6
Which one of the following discoveries resulted in a Nobel Prize?
(A)
X-rays induce sex-linked recessive lethal mutations
(B)
Cytoplasmic inheritance
(C)
Recombination of linked genes
(D)
Genetic engineering
Question-7
The most abundant element present in the plants is
(A)
Carbon
(B)
Nitrogen
(C)
Manganese
(D)
Iron
Question-8
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-9
During viral infection the protein formed in host cells to resist is
(A)
Interferon
(B)
Antitoxin
(C)
Antibody
(D)
Histone
Question-10
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.
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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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