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Read the following and answer any given below:Cloning Cloning is the process of producing many identical organisms or clones. In this process nucleus of ovum (n) is removed and replaced by nucleus of diploid cell of same organism. Now the egg with 2n nucleus is transferred to the uterus of mother to have normal pregnancy and delivers clone of itself. Cloning of sheep was done by Dr. Ian Wilmut (1995) of Roslin Institute, Edinberg U.K. and normal healthy lamb (DOLLY) was born in Feb, 1996. This lamb was exactly similar to her mother. The first cloned calves George and Charlie were born in January 1998. ANDI was the world’s first genetically altered primate produced by inserting a jelly fish gene into the embryo of a rhesus monkey. Scientist at Scotland cloned POLLY and MOLLY. Unlike Dolly, Polly and molly were transgenic (they carried human protein gene) Polly and molly were born in July 1997. Brigitte Boissliar, a 46-year old French chemist announced the creation of the world’s first cloned human baby nicknamed “Eve” (December 2002).(i) Choose the correct statement with reference to “Dolly” a. She was created by taking nucleus from unfertilised eggb. She was created by taking nucleus from undder cell and cytoplasm from unfertilised egg c. She was created by taking cytoplasm from udder cells and nucleus from fertilised egg d. She was created in the test tube (ii). First cloned animal is a. Dog b. Molly c. Dolly sheep d. Polly sheep (iii). ANDI is cloned a. Sheep b. Bull c. Monkey d. Cat (iv). Name the scientist who done cloning of sheep first in the world a. George and Charlie b. Dr. Ian Wilmut c. Alec Jeffreys d. Brigitte Boissliar (v). Who created the World first cloned human baby a. Barbara McClintock b. Dr. Ian Wilmut c. Alec Jeffreys d. Brigitte Boissliar

Answer»

(i) b. She was created by taking nucleus from undder cell and cytoplasm from unfertilised egg

(ii) c. Dolly sheep

(iii) c. Monkey

(iv) b. Dr. Ian Wilmut

(v) d. Brigitte Boissliar



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