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प्रश्न
Short answer question.
Draw a graph to show that natural selection leads to disruptive change.
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संबंधित प्रश्न
Define evolution. How does it occur?
State one characteristic which shows that the birds are very closely related to dinosaurs.
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 |
Very short answer question.
Define Organic evolution.
Transfer of a part of chromosome or set of genes to a non-homologous chromosome is called ________.
Name any three types of postmating isolating mechanisms.
____________ results in variation in gene frequencies within population by chance rather than by natural selection.
Had Darwin been aware of Mendel’s work, would he been able to explain the origin of variations. Discuss.
The chronological order of human evolution from early to recent stages is ______.
What is a connecting link?
