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प्रश्न
Define speciation according to A.E. Emerson and explain its types giving suitable examples.
उत्तर
A.E. Emerson defines species as a ‘genetically distinctive, reproductively isolated natural population’. Speciation is a fundamental process in evolution. If one species diverges to become two or more species it is cladogenesis or divergent evolution.
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संबंधित प्रश्न
List three main factors responsible for the speciation and briefly describe each one of them
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually? Why or why not?
Name an animal having rudimentary eyes.
Name the famous book written by Charles Robert Darwin.
Fill in the following blank with suitable word:
Broccoli has evolved from .............. by the process of artificial selection.
Give an example of characteristics being used to determine how close two species are in evolutionary terms.
State the various factors which could lead to the formation of new species.
The theory of evolution of species by natural selection was given by ______
One of the following has not been produced from wild cabbage by the process of artificial selection. This one is :
(a) kohlrabi
(b) cabbage
(c) spinach
(d) kale
