Example of Transgenic Animals

Q. How was Dolly, the first clone formed?

Q.

‘Dolly’ was created using the udder cell nucleus from __________ and an enucleated egg cell from ____________

1. Finn dorset ewe and Scottish blackface ewe

2. Scottish blackface ewe and Finn dorset ewe

3. Scottish blackface ewe and Finn dorset Ram

4. Only from the udder cells of finn dorset ewe

Q. Dolly was produced by the help of which technique:

1. From normal hybridization.
2. From normal sexual reproduction.
3. From cloning.
4. From Tissue Culture.

Q. First cloned animal was

1. Dolly sheep
2. Polly sheep
3. Molly sheep
4. Dog

Q. In cloning of cattle, a fertilized egg is taken out of the mother's womb and

1. The egg is divided into 4 pairs of cells which are implanted into the womb of other cows.
2. In the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cows.
3. In the eight cell stage, the individual cells are separated under electrical field for further development in culture media.
4. From this, upto eight identical twins can be produced.

Q. Dolly sheep was obtained by

1. Cloning the udder cell (somatic cell) fused with 6 enucleated oocyte
2. None of the above
3. Tissue culture
4. Cloning of gametes

Q. Assertion :Dolly was a female domestic sheep, and the first mammal cloned by somatic cell nuclear transfer Reason: Cell nucleus from an adult somatic cell is transferred into an unfertilized oocyte

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. The maximum number of transgenic varieties produced till date are of which of the following organisms?

1. Mice
2. Fruit flies
3. Fishes
4. Cows

Q. The first cloned sheep is called

1. Dolly
2. Polly
3. Molly
4. Holly