Advertisements
Advertisements
प्रश्न
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
उत्तर
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.
APPEARS IN
संबंधित प्रश्न
Struggle between cow and cow to get grass is called ______.
Name two human traits which show variation.
A plant with two 'small' genes breeds with a plant with two 'tall' genes to produce :
(a) small plants and tall plants in the ratio 1 : 3
(b) all small plants
(c) all tall plants
(d) tall plants and small plants in the ratio 3 : 1
Name an animal having rudimentary eyes.
Why are human beings who look so different from each other in terms of size, colour and looks said to belong to same species?
With the help of an example, explain how variation leads to evolution.
How are those species which are now 'extinct' studied?
According to the evolutionary theory, the formation of a new species is generally due to ______
Very short answer question.
Define Speciation.
In human males, all the chromosomes are paired perfectly except one. These unpaired chromosomes are ______
(i) Large chromosome
(ii) Small chromosome
(iii) Y chromosome
(iv) X chromosome
