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Question-1
DNA molecule is copied so that one copy can be distributed to each of which type of cell?
(A)
Gene cells
(B)
Two daughter cells
(C)
Two parent cells
(D)
Cells
Question-2
Total number of chromosomes that a human body does consist.
(A)
32
(B)
24
(C)
46
(D)
40
Question-3
Protein is a polypeptide formed of many amino acids joined together by chemical bonds known as:
(A)
Enzyme
(B)
Peptide bonds
(C)
Genetic code
(D)
Protein synthesis
Question-4
Mutations can be induced by physical or chemical agents called:
(A)
Mutagens
(B)
Gene
(C)
Chromosome
(D)
Aberration
Question-5
The process of making identical copies of a cell is called:
(A)
Trypsin
(B)
Gene
(C)
Pectin
(D)
Cell cloning
Question-6
Mutations when they arise suddenly in nature are called:
(A)
Mutagens
(B)
Duplication
(C)
Deletion
(D)
Spontaneous mutation
Question-7
mRNA is commonly called:
(A)
Messenger RNA
(B)
Merge RNA
(C)
Message RNA
(D)
RNA
Question-8
tRNA stands for:
(A)
Transmit RNA
(B)
Transformation RNA
(C)
Transport RNA
(D)
Transfer RNA
Question-9
Chromosomes are formed mainly of two types of chemical substances, one is the nucleic acid (DNA and RNA). Which is the other one?
(A)
Virus
(B)
Bacteria
(C)
Protein
(D)
All of these
Question-10
The process by which a portion of a chromosome is repeated.
(A)
Tandem
(B)
Mutation
(C)
Duplication
(D)
Deletion
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Cambridge Advanced Grade 12
IGCSE
Practice in Related Chapters
Transport in Plants
Regulations and Control
DNA and Protein Synthesis
The Molecules of Life
Photosynthesis and Plant Nutrition
Enzymes
Genetics
Cell
Cell Division
Ecology
Animal Nutrition
Reproduction in Animals
Gas Exchange
Evolution
Transport in Mammals
Respiration
Heterotrophic Nutrition
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