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Question
What is reproductive isolation?
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Solution
RELATED QUESTIONS
Very short answer question.
If variation occurs in a population by chance alone and not by natural selection and brings a change in frequencies of an allele. What is it called?
Short answer question.
Enlist the different factors that are responsible for changing gene frequency.
Match the following:
| Column- I | Column- II |
| 1. August Weismann | a. Mutation theory |
| 2. Hugo de vries | b. Germplasm theory |
| 3. Charl Darwin | c. Theory of acquired characters |
| 4. Lamark | d. Theory of natural selection |
Any random fluctuation in allele frequency, occurring in the natural population by pure chance is called __________.
Which theory provides explanation for both natural selection as well as mutation?
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 of the following phenomena results in genetic recombination?
Identify the method of reproductive isolation, when members of a population attain sexual maturity at different times preventing interbreeding.
Which event is represented by the above diagram, related to chromosomal aberrations?
Define the term Chromosomal aberrations.
