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प्रश्न
What is hybrid sterility?
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उत्तर
Hybrids develop to maturity but become sterile due to failure of proper gametogenesis (meiosis). This is called hybrid sterility. e.g. Mule is an inter-generic hybrid that is sterile.
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संबंधित प्रश्न
Give any ‘two’ factors responsible for genetic variation.
The proportion of an allele in the gene pool to the total number of alleles at a given locus is called _______.
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 |
Which of the following is the CORRECT difference between genetic drift and natural selection?
The structural, morphological change chromosome due to rearrangement is called ____________.
______ is the separation of the population of a particular species into smaller units which prevents interbreeding between them.
Black colored form became dominant over the light colored form in England during industrial revolution after 1845. This can be owed to ______.
Identify the method of reproductive isolation, when members of a population attain sexual maturity at different times preventing interbreeding.
The movement of genes into or out of a population is known as ______.
Reasons for diversity in a living being is:
