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प्रश्न
Multiple choice question.
Gene frequency in a population remain constant due to –
विकल्प
Mutation
Migration
Random mating
Non- random mating
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उत्तर
Random mating
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संबंधित प्रश्न
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 |
In what way are homologous organs evidence for evolution?
Scientists believe that all life originated in :
(a) the sea
(b) the soil
(c) the ground
(d) the air
Read the following statement and justify the same in your own words with the help of a suitable example.
Human evolution began approximately 7 crore years ago.
Explain the following :
(a) Speciation
(b) Natural Selection
Short answer question.
Give an example of disrruptive selection
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.
Theory of inheritance of acquired character was given by:
