Question 11 of 26
Evolution
Embryological support for evolution was proposed by:
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Class XII · Biology practice
Evolution PYQs
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26 questions in this collection · Page 2 of 3
Question 12 of 26
Evolution
The phenomenon of evolution of different species in a given geographical area starting from a point and
spreading to other habitats is called:
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Question 13 of 26
Evolution
A Hominid fossil discovered in Java in 1891, now
extinct, having cranial capacity of about 900 cc was:
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Question 14 of 26
Evolution
Variations caused by mutation, as proposed by Hugo
de Vries, are:
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Question 15 of 26
Evolution
n a species, the weight of newborn ranges from 2
to 5 kg. 97% of the newborn with an average weight
between 3 to 3.3kg survive whereas 99% of the
infants born with weights from 2 to 2.5 kg or 4.5
to 5 kg die. Which type of selection process is taking place?
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Question 16 of 26
Evolution
Match the hominids with their correct brain size :
Select the correct option.
| (A)Homo habilis | (I)900 cc |
| (B)Homo neanderthalensis | (II)1350 cc |
| (C)Homo erectus | (III)650-800 cc |
| (D)Homo sapiens | (IV)400 cc |
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Question 17 of 26
Evolution
The flippers of the Penguins and Dolphins are the
example of the:
EVOLUTION-NCERT Book Page no:131
Question 18 of 26
Evolution
Natural selection can lead to:
(a) Stabilisation
(b) Genetic drift
(c) Directional change
(d) Disruption
Choose the correct answer from the options given below:
(a) Stabilisation
(b) Genetic drift
(c) Directional change
(d) Disruption
Choose the correct answer from the options given below:
Natural selection may produce stabilising, directional or disruptive selection. Genetic drift is a random change in allele frequency and is not caused by natural selection.
Question 19 of 26
Evolution
A population of diploid organisms is at Hardy-Weinberg equilibrium. If the frequency of allele A is 0.1, the frequency of AA is
According to the Hardy-Weinberg principle, the frequency of genotype AA is p². Here p = 0.1, therefore p² = 0.01.
Question 20 of 26
Evolution
Which of the following is not evidence for evolution?
Haeckel's biogenetic law has been discredited and is no longer accepted as valid evidence for evolution.
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