Geographical isolation prevents gene flow between populations of a species whereas asexual reproduction generally involves only one individual. In an asexually reproducing organism, variations can occur only when the copying of DNA is not accurate. Therefore, geographical isolation cannot prevent thRead more
Geographical isolation prevents gene flow between populations of a species whereas
asexual reproduction generally involves only one individual. In an asexually reproducing
organism, variations can occur only when the copying of DNA is not accurate. Therefore,
geographical isolation cannot prevent the formation of new species in an asexually
reproducing organism.
Geographical isolation can prevent the transfer of pollens among different plants. However, since the plants are self-pollinating, which means that the pollens are transferred from the anther of one flower to the stigma of the same flower or of another flower of the same plant, geographical isolatioRead more
Geographical isolation can prevent the transfer of pollens among different plants.
However, since the plants are self-pollinating, which means that the pollens are
transferred from the anther of one flower to the stigma of the same flower or of another
flower of the same plant, geographical isolation cannot prevent speciation in this case.
Natural selection, genetic drift and acquisition of traits during the life time of an individual can give rise to new species. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-9/
Natural selection, genetic drift and acquisition of traits during the life time of an individual
can give rise to new species.
Small numbers of tigers means that fewer variations in terms of genes are available. This means that when these tigers reproduce, there are less chances of producing progeny with some useful variations. Hence, it is a cause of worry from the point of view of genetics. For more answers visit to websiRead more
Small numbers of tigers means that fewer variations in terms of genes are available. This
means that when these tigers reproduce, there are less chances of producing progeny with
some useful variations. Hence, it is a cause of worry from the point of view of genetics.
This happens because an acquired trait involves change in non-reproductive tissues (somatic cells) which cannot be passed on to germ cells or the progeny. Therefore, these traits cannot be inherited. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chRead more
This happens because an acquired trait involves change in non-reproductive tissues
(somatic cells) which cannot be passed on to germ cells or the progeny. Therefore, these
traits cannot be inherited.
Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually? Why or why not?
Geographical isolation prevents gene flow between populations of a species whereas asexual reproduction generally involves only one individual. In an asexually reproducing organism, variations can occur only when the copying of DNA is not accurate. Therefore, geographical isolation cannot prevent thRead more
Geographical isolation prevents gene flow between populations of a species whereas
asexual reproduction generally involves only one individual. In an asexually reproducing
organism, variations can occur only when the copying of DNA is not accurate. Therefore,
geographical isolation cannot prevent the formation of new species in an asexually
reproducing organism.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-9/
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
Geographical isolation can prevent the transfer of pollens among different plants. However, since the plants are self-pollinating, which means that the pollens are transferred from the anther of one flower to the stigma of the same flower or of another flower of the same plant, geographical isolatioRead more
Geographical isolation can prevent the transfer of pollens among different plants.
However, since the plants are self-pollinating, which means that the pollens are
transferred from the anther of one flower to the stigma of the same flower or of another
flower of the same plant, geographical isolation cannot prevent speciation in this case.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-9/
What factors could lead to the rise of a new species?
Natural selection, genetic drift and acquisition of traits during the life time of an individual can give rise to new species. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-9/
Natural selection, genetic drift and acquisition of traits during the life time of an individual
can give rise to new species.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-9/
Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?
Small numbers of tigers means that fewer variations in terms of genes are available. This means that when these tigers reproduce, there are less chances of producing progeny with some useful variations. Hence, it is a cause of worry from the point of view of genetics. For more answers visit to websiRead more
Small numbers of tigers means that fewer variations in terms of genes are available. This
means that when these tigers reproduce, there are less chances of producing progeny with
some useful variations. Hence, it is a cause of worry from the point of view of genetics.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-9/
Why are traits acquired during the life-time of an individual not inherited?
This happens because an acquired trait involves change in non-reproductive tissues (somatic cells) which cannot be passed on to germ cells or the progeny. Therefore, these traits cannot be inherited. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chRead more
This happens because an acquired trait involves change in non-reproductive tissues
(somatic cells) which cannot be passed on to germ cells or the progeny. Therefore, these
traits cannot be inherited.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-9/