1.

Cloning.

Answer»

Solution :(1) Cloning is the MODERN technique in which there is production of replica of any or organ or entire organism is done.
(2) There are two types of cloning, viz. (i) Reproductive cloning and (ii) Therapeutic cloning.
(3) Reproductive cloning : In reproductive cloning, a clone is produced by fusion of a nucleus of diploid somatic cell with theenucleated ovum of anybody. In the process, the sperm or male gamete is not needed.
(4) Therapeutic cloning : This technique is largely used for treatment purpose. STEM cells are derived from the cell formed in laboratory by the union of somatic cell nucleus with the enucleated egg cell.
(5) This technique is used for therapy of various diseases.
(6) Gene cloning can also be done to form million of copies of same gene. Such genes are used for gene therapy and other purposes.
(7) DUE to cloning technique, the inheritance of hereditary diseases can be controlled, continuation of generations can be achieved andcertain characteristic genes can be enhanced.
(8) However, for human cloning, there is world-wide opposition due to ETHICAL reasons.


Discussion

No Comment Found