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प्रश्न
Short answer question.
What is disruptive selection?
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उत्तर
Disruptive natural selection is a selection in which more number of individuals acquire peripheral character value at both ends of the distribution curve.
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संबंधित प्रश्न
Out of the wing of a bird, wing of an insect and the wing of a bat :
which two are homologous organs?
Match the terms given in column I with those given in column II :
| Column I | Column II |
| (1) Fossil | (a) A famous evolutionist |
| (2) A theory of evolution | (b) Survival of the fittest |
| (3) Probable ancestor of birds | (c) Petrified remains of prehistoric life |
| (4) Charles Darwin | (d) Father of genetics |
| (5) Gregor Mendel | (e) Archaeopteryx |
A population of red beetles lives in green bushes in a garden. Once during the process of breeding, a green beetle is produced.
(a) State whether the change in colour of beetle is a process of evolution or not.
(b) Can the new colour of green beetle be passed on to its next generations?
(c) What will be the advantage (if any) of the green colour to the beetle?
(d) State whether the production of green colour involved a change in genetic material or not.
Read the following statement and justify same in your own words with the help of suitable example.
Human evolution began approximately 7 crore years ago.
Define Organic evolution.
Short answer question.
Write a note on Genetic drift.
Explain stabilizing, directional and disruptive selection with examples.
The idea of mutation was brought forth by:
Theory of inheritance of acquired character was given by:
What is a connecting link?
