isolating mechanism meaning in Hindi

Examples

1. Stern suggests this may serve as a reproductive isolating mechanism between the two species.
2. Dobzhansky presents a classification of isolating mechanisms.
3. Gould was particularly attracted to Douglas Futuyma's work on the importance of reproductive isolating mechanisms.
4. An " isolating mechanism " prevents members of two different species from successfully producing offspring.
5. This demonstrates evidence of an early post-fertilization isolating mechanism, in which the hybrid early embryo is detected and selectively aborted.
6. He was skeptical of the reality of sympatric speciation believing that geographical isolation was a prerequisite for building up intrinsic ( reproductive ) isolating mechanisms.
7. Another well-documented example of a pre-fertilization isolating mechanism in plants comes from study of the 2 wind-pollinated birch species.
8. In such cases, selection gives rise to population-specific isolating mechanisms to prevent either fertilization by interspecific gametes or the development of hybrid embryos.
9. After two populations are changed sufficiently, " physiological " isolating mechanisms prevent them from mating, so they will remain distinct even if they are no longer physically isolated.
10. The effect of this change in interpretation is to put the emphasis for speciation onto natural selection for appropriate food handling instead of seeing it primarily as a by-product of an isolating mechanism.