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प्रश्न
Define Speciation.
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उत्तर
The process of formation of a new species from the pre-existing species is called speciation.
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संबंधित प्रश्न
List three main factors responsible for the speciation and briefly describe each one of them
List four factors responsible for speciation.
A plant with two 'small' genes breeds with a plant with two 'tall' genes to produce :
(a) small plants and tall plants in the ratio 1 : 3
(b) all small plants
(c) all tall plants
(d) tall plants and small plants in the ratio 3 : 1
What name is given to the sequence of gradual changes over millions of years in which new species are produced?
Name the famous book written by Charles Robert Darwin.
Choose the one term from the following which includes the other three :
broccoli, wild cabbage, cauliflower, cabbage
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Give reason for your answer.
Which of the following statement is incorrect with respect to variations?
(a) all variations in a species have equal chance of survival
(b) change in genetic composition results in variations
(c) selection of variations by environmental factors forms the basis of evolutionary process
(d) variations are the minimum in asexual reproduction
List any two factors that could lead to speciation.
The theory of evolution of species by natural selection was given by
