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प्रश्न
Short answer question.
Draw a graph to show that natural selection leads to disruptive change.
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उत्तर
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संबंधित प्रश्न
Explain the concept ‘survival of the fittest’.
Some plants occur in one of the two sizes : tall or dwarf. This characteristic is controlled by one pair of genes. Tallness is dominant to dwarfness. Choose suitable letters for this gene pair.
What is meant by dominant genes and recessive genes? Give one example of each.
Out of the wing of a bird, wing of an insect and the wing of a bat :
which two are homologous organs?
Fill in the following blank with suitable word :
The human forelimb and bat's forelimb are an example of .......... organs whereas an insect's wing and a bat's wing are an example of ........... organs.
Scientists believe that all life originated in :
(a) the sea
(b) the soil
(c) the ground
(d) the air
Define Organic evolution.
Short answer question.
What is disruptive selection?
The idea of mutation was brought forth by:
What is a connecting link?
