Q. No.Darwinian theory of evolution-
(1) Branching descent and natural selection are two auxillary concepts of this theory.
(2) Natural selection is based on some factual observations.
(3) Was influenced by work of Alfred Wallace on populations.
(4) Both A and C
(1) Branching descent and natural selection are two auxillary concepts of this theory.
(2) Natural selection is based on some factual observations.
(3) Was influenced by work of Alfred Wallace on populations.
(4) Both A and C
In the story of this world, evolution is a …... and in the story of life on Earth, evolution is……
1. Process, result of environmental changes
2. Result of environmental changes, process
3. Process, result of natural selection
4. Result of natural selection, process
Which of the following was the novel insight of Darwin in his theory?
(1) Variations are heritable and make resource utilisation better for few will enable only those to reproduce and leave more progeny
(2) Population size will grow exponentially if everybody reproduced maximally.
(3) Natural resources are limited yet populations are stable in size except for seasonal fluctuations.
(4) Members of populations vary in characteristics.
Two peaks will be observed in which of the operation of natural selection?
(1) Disruptive
(2) Directional
(3) Stabilising
(4) Both A and B
Peak getting higher and narrower is observed in which of the operation of natural selection?
(1) Disruptive
(2) Directional
(3) Stabilising
(4) Both A and B
If the population of a place has a certain character which is recessive in as many as 100 individuals. Find the value of q if total number of individuals are 1000
(1) 0.1
(2) 0.7
(3) 0.3
(4) 1.0
If 900 people make a population such that 300 are albino. Calculate the frequency of carriers?
(1) 42
(2) 44
(3) 48
(4) 49
If a population has dominant phenotype in 1600 individuals out of 2000 then calculate the frequency of heterozygote.
(1) 494
(2) 256
(3) 128
(4) 356
If in a given population number of individuals with dominant phenotype are 60% what will be the number of heterozygote in that population?
(1) Around 23%
(2) Around 46%
(3) 26%
(4) 25%
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