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Question-1
Process of formation of new species, by the gradual transformation of pre-existing ones is known as:
(A)
Natural selection
(B)
Variations
(C)
Speciation
(D)
Lamarckism
Question-2
The minimum two alternative forms of a gene or unit factor it represents are together called:
(A)
Chromosome
(B)
Allele
(C)
Nucleus
(D)
Gametes
Question-3
Write the name of the English naturalist who first resolved all previous perplexities of evolution.
(A)
Charles Robert Darwin
(B)
James Watson & Francis Crick
(C)
Albert Einstein
(D)
Sir Alec Jeffrey
Question-4
The species which are morphologically more or less similar but do not interbreed are called:
(A)
Sibling species
(B)
Evolutionary species
(C)
Gene pool
(D)
Polymorphism
Question-5
Most popular medicine compacting bacteria.
(A)
Penicillin
(B)
Antibody
(C)
Antibiotic
(D)
Antigen
Question-6
The theory of evolution by natural selection was put forward by:
(A)
Landmark
(B)
Charles Robert Darwin
(C)
A.Weismann
(D)
Alfred Russel
Question-7
The structure of beak of a group of birds found in Galapagos Islands is called:
(A)
Tree finch
(B)
Insectivorous finch
(C)
Warbler finch
(D)
Darwin’s finch
Question-8
Organisms with multiple chromosome number which are of basic set can be called:
(A)
Zygotic mortality
(B)
Species
(C)
Polyploids
(D)
Neo-Darwinism
Question-9
The random change in the allele frequency, occurring by chance alone, is known as:
(A)
Recombination
(B)
Gene migration
(C)
Mutation
(D)
Genetic drift
Question-10
From generation to generation natural selection will keep the range of coloration in the insect population about the same, these type of change is called:
(A)
Directional selection
(B)
Disruptive selection
(C)
Stabilising selection
(D)
Speciation
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Cambridge Advanced Grade 12
IGCSE
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