give advantages and disadvantages of self polination.
Answers
Answer:
Advantages of self – pollination
In self- pollination, there is no diversity in the genes and therefore the purity of the race is maintained.
The plants do not depend on external factors for pollination and even smaller quantities of pollen grains produce have a good success rate in getting pollinated.
Self- pollination ensures that recessive characters are eliminated.
Disadvantages of self- pollination
Since there is no mixing up of genes, there are no new characters or features that are introduced into the lineage of the offsprings.
Self- pollination is said to reduce the vigor and vitality of the race as there are no new features introduced.
Without new characters introduced, the resultant offsprings’ immunity to diseases reduces.
Answer:
3. Self pollination are generally faster. 4. Less chance of failure of pollination.
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No variations occurs if plant gets hit by a disease there is no possibility of survival and population decreases.
2.It does not result in creation of new species.
Continuous self pollination results in weak progenies.