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Biology Life Science Test Medium Mode MCQs With Answers
Question # 1
Ribosomal RNA is synthesized and stored in
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Nucleolus
Mitochondria
Nucleus
Chloroplast
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Question # 2
Carnivorous plants live in soils that are deficient in.
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Potassium
Oxygen
Nitrogen
Magnesium
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Question # 3
An aphid that attacks Walnut tree is being controlled biologically by.
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House
Honey bee
Mosquito
Wasp
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Question # 4
To biological function of a protein is determined by its
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Primary structure
Secondary structure
Tertiary structure
Quaternary structure
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Question # 5
Which of the following statement about the ribosomes is correct
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They are structurally different from free ribosomes
They are enclosed in their own membrane
They are concentrated in the cisternal space for the rough ER
They are attached to cisternal surface
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Question # 6
A bacteria with single polar flagellumis called.
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Atrichous
Monotrichous
Amphitrichous
Lophotrichous
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Question # 7
Plastocyanin protein contains.
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Iron
copper
Potassium
Magnesium
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Question # 8
Amoebic dysentery in.
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Amoeba
Entamoeba histolytica
Trypanosoma
Plasmodium
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Question # 9
the percentage of water in human bone cells in
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18%
19%
20%
25%
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Question # 10
The specific heat of vaporization of water Kcal/kg is
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457 kcal/kg
574 kcal/kg
547 kcal/kg
475 kcal/kg
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Question # 11
Animal of which phylum have developed bilateral symmetry in their larvae and radial symmetry in adults.
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Nematoda
Annelida
Echinodermata
Mollusca
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Question # 12
The abiotic component of an ecosystem is.
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Temperature
Producer
Consumer
Decomposer
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Question # 13
The most toxic substance routinely found in the blood are metabolities of what type of molecule?
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Proteins
Carbohydrates
Nucleic acids
Fats
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Question # 14
The number of nucleotides in the DNA of a typical human chromosome is about
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10 Million
40 million
80 million
140 million
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Question # 15
Blue cone monochromacy is also called
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Red - green colour blindness
Red - blue colour blindness
Green - blue colour blindness
Yellow - blue colour blindness
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Question # 16
A callus is an undifferentiated group of
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Cells
Tissues
Organs
Systems
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Question # 17
The gens found in a breeding population constitute.
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Genotype
Genome
Gene frequency
Gene pool
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Question # 18
The type of inheritance with same phenotypic and genotypic ratio in F2
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Dominance
Incomplete dominance
Co dominance
Epistasis
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Question # 19
The ultimate source of change is.
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Evolution
Mutation
Genetic drift
Migration
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Question # 20
Repeating units of DNA are called.
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Histones
Nucleosides
Nucleotides
Amino acids
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Question # 21
The release of ovum from the ovary is called.
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Ovulation
Menstruation
follicle atresia
Menace
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Question # 22
The productivity can be indicated by.
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Consumption of CO2
Consumption of O2
Evolution of CO2
Evolution of N2
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