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प्रश्न
What is Isolation?
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उत्तर
Isolation is the process by which populations of the same species are separated from each other due to geographical or reproductive barriers, so they cannot interbreed.
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संबंधित प्रश्न
Give any ‘two’ factors responsible for genetic variation.
State the following:
Theory of recapitulation
According to Abiogenesis, life originated from
(1) Non-living matter
(2) Pre-existing life
(3) Oxygen
(4) Extra-terrestrial matter
From the visible spectrum of light, which component is reflected by the given leaves?
Long answer question.
Explain the different factors responsible for genetic variations.
All are post zygotic barriers, EXCEPT
Match the columns and choose the correct option.
| Column I | Column II | ||
| i. | Ecological isolation | a. | Sexually mature at different times of the year |
| ii. | Ethological isolation | b. | Specific mating behaviours |
| iii. | Mechanical isolation | c. | Difference in structure of mating organs |
| iv. | Seasonal isolation | d. | Same geographic region but separate habitat |
______ changes the genes rearrangement (order or sequence) resulting in variation.
Match the columns and choose the correct option.
| Column I | Column II | ||
| i. | Zygote mortality | a. | Hybrid develops to maturity but becomes sterile |
| ii. | Hybrid sterility | b. | Egg is fertilized but zygote dies |
| iii. | Gamete mortality | c. | Union of two gametes does not occur in the iven time |
Which event is represented by the above diagram, related to chromosomal aberrations?
