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प्रश्न
Why are human beings who look so different from each other in terms of size, colour and looks said to belong to same species?
उत्तर
It is because human beings, despite these differences, can interbreed to produce fertile offsprings.
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संबंधित प्रश्न
Which of the following may be used to obtain an F2 generation?
(a) allowing flowers on a parent plant to be self-pollinated
(b) allowing flowers on an F1 plant to be self-pollinated
(c) cross-pollinating an F1 plant with a parent plant
(d) cross-pollinating two parent plants
What is meant by a species?
State the various factors which could lead to the formation of new species.
Define 'natural selection'.
The human species has genetic roots in ______
Read the following statement and justify same in your own words with the help of suitable example.
Geographical and reproductive isolation of organisms gradually leads to speciation.
Very short answer question.
Define Speciation.
In human males, all the chromosomes are paired perfectly except one. These unpaired chromosomes are ______
(i) Large chromosome
(ii) Small chromosome
(iii) Y chromosome
(iv) X chromosome
The theory of evolution of species by natural selection was given by
Add a note on allopatric speciation.
