Somatic Nuclear Transfer

Q. Clones are organisms that are exact genetic copies of each other.

1. True
2. False

Q.

The creation of a complete new animal from just the somatic cells of an animal is called:

1. Animal cloning

2. Gene cloning

3. Cell cloning

4. All of these

Q.

Regarding Assertion and Reason, choose the correct option

Assertion[A]: Dolly is a $100\%$ clone of a Finn dorset ewe.

Reason[R]: Dolly's nuclear DNA is from a Finn dorset ewe and her mitochondrial DNA is from a Scottish Blackface ewe.

1. Both Assertion and Reason are false

2. Both Assertion and Reason are True and Reason explains Assertion

3. Both Assertion and Reason are true Reason does not explain Assertion

4. Assertion is False and Reason is True

Q.

Which of the following statement is not true for a clone?

1. Clones are descended from a single parent

2. Identical twins are not clones

3. Clone is a result of sexual reproduction

4. Both (A) and (C)

Q.

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

1. the egg is divided into four pairs of cells, which are implanted into the womb of other cows

2. in the eight-celled 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 obtained in culture media

4. from this up to eight identical twins can be produced

Q.

Choose the correct statement with reference to 'Dolly'

1. She was created by taking the nucleus from unfertilised eggs and cytoplasm from fertilised eggs

2. She was created by taking the nucleus from udder cells and cytoplasm from unfertilised eggs

3. She was created by taking cytoplasm from udder cells and nucleus from the unfertilised egg

4. She was created by taking cytoplasm from udder cell and nucleus from a fertilised egg

5. She was created inside the test tube

Q. In cloning of cattle the fertilized egg is taken out of the mother’s womb and:

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

Q.

Name the parent sheep of which Dolly was a clone.

Q.

Name the technique which was used in producing 'Dolly' the sheep.

Q.

Regarding Assertion and Reason, choose the correct option

Assertion[A]: Dolly is a $100\%$ clone of a Finn dorset ewe.

Reason[R]: Dolly's nuclear DNA is from a Finn dorset ewe and her mitochondrial DNA is from a Scottish Blackface ewe.

1. Both Assertion and Reason are true Reason does not explain Assertion

2. Assertion is False and Reason is True

3. Both Assertion and Reason are false

4. Both Assertion and Reason are True and Reason explains Assertion