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Online Tests
Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
Which one of the following is and organic molecule
Choose an answer
C
6
H
12
O
6
NO
2
H
2
O
H
2
SO
4
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Question # 2
Cell wall in Oomycetes is chemically composed of
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Cellulose
Chitin
Proteins
Lignin
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Question # 3
Human Tissues have 85% water in cells of.
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Bone
Blood
Liver
Brain
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Question # 4
When cocci occur in pairs, their arrangement.
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Tetrad
Diplococcus
Streptococci
Sarcina
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Question # 5
What is the true sequence of bones in the mammalianear.
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Malleus, incuse and stapes
Incus and stapes
Malleus and stapes
Stapes and malleus
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Question # 6
The percentage of lipids is plasma membrane is.
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60- 80 %
20-40%
30 - 60%
10-20%
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Question # 7
The process of taking in food is
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Digestion
Ingestion
Assimilation
Absorption
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Question # 8
In the lytic cycle of a bacteriophage, the host DNA is
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Replicated
Turned off by a protein coat
Digested into its nucleotides
Turned on by the removal of a protein coat
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Question # 9
Cell wall of prokaryotic organisms lack cellulose instead of cellulose its strengthening materials is.
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Silica
Wax
Cutin
Mureln
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Question # 10
In lysogenic cycle, the DNA of bacteriophage
Choose an answer
Joins the bacterial chromosomes
Attaches to the inner surface of the host membrane
Is immediately degraded when it enters the host
Goes directly to the host's ribosomes for translation
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Question # 11
Tests of foraminifera, are made up of.
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Silica
Calcium
Chitin
Magnesium
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Question # 12
The most concentrated external environment is termed as.
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Hypotonic
Hypertonic
Osmotic
Isotonic
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Question # 13
Which prosess is characterized by movement and rearrangement of cells in the embryo
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Blastulation
None of these
Neurulation
Gastrulation
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Question # 14
Nuclear membrane disorganizes at the beginning of
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Prophase 1
Metaphase 1
Anaphase 1
Telophase 1
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Question # 15
Among the birds Drawin collected 13 types of
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Finshes
Robins
Ferrets
Pterodactyls
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Question # 16
Antidiuretic hormone is also called
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Oxytocin
ACTH
Vasopressin
Both a & b
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Question # 17
In 1882, chromosomes were first observed by.
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John Brown
T.H.Morgan
Walter fleming
Walther sutton
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Question # 18
Gene pool consists of all alleles at all gene loci in all individuals of the
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Family
Clan
Population
Community
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Question # 19
Human cells contain types of tRNA molecules.
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20
45
195
300
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Question # 20
Which one is parthenogenic fruit.
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Apple
Pine apple
Peach
Mango
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Question # 21
Endosymbiont hypothesis explains origin of.
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cell
Prokaryotic cell
Eukaryotic cell
Ribosome
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Question # 22
During progeny luteotropic hormone LTH and placental lactogen stimulate Mammary development in preparation for.
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Gestation
Lactation
Miscarriage
After birth
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