Somatic Nuclear Transfer

Q.

Meaning of PEN

Q.

The term __ is used to describe morphologically and genetically similar individuals

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.

Which among the following is wrong statement?

1. A single parent is not capable of producing offspring

2. Offsprings produced asexually are identical to one another

3. Asexual reproduction results in clones

4. The progeny obtained through asexual reproduction are exact copies of their parent.

Q. Explain germ layer with diagram

Q. Explain the events that occur in Multiple Ovulation Embryo Transfer (MOET).

Q. High milk yielding varieties of cows are obtained by______________

1. Super ovulation
2. Artificial insemination
3. Use of surrogate mothers
4. All of the above

Q. What is DNA copying? State its importance.

Q. Microlecithal eggs are found in

1. Eutheria
2. Reptilia, Aves and Chiroptera
3. Reptilia and Aves
4. Amphibia, Aves and Reptilia

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 and Reason explains Assertion

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

3. Assertion is False and Reason is True

4. Both Assertion and Reason are false

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

1. True
2. False

Q. If the frequency of parental from is figure than 25% in a dihybrid test cross, what does it indicate about the two genes involved The egg of On animal contains 10 chromosomes, of which one is X chromosome.

Q. The injecting of foreign gene in an animal gives rise to

1. Transgenic plant
2. Transcribed animal
3. Transgenic organism
4. Transgenic animal

Q. Scientific method of breeding includes.

1. Superovulation only
2. Artificial insemination only
3. All of these
4. Embryo transplantation only

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.

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

1. Gene cloning

2. Animal cloning

3. Cell cloning

4. Sexual reproduction

Q. A genetic clone is

1. Plants produced by asexual means
2. Homozygous plant produced by sexual means
3. Hybrid produced by sexual means
4. Heterozygous plant produced by sexual means

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. What is the important of DNA copying in reproduction?

Q. Short / Long answer type questions
The progeny of a sexually reproducing organism is never the replica of the parents in all respects. Mention any four factors that cause this variation.

Q. The first successfully cloned animal is

1. Frog
2. Sheep
3. Fish
4. Bird

Q. The sperms employed for artificial insemination of cattle are stored in ...............

1. Liquid oxygen
2. Dry ice
3. Liquid ammonia
4. Liquid nitrogen

Q. Clones are

1. Plants raised from a single parent
2. Genetically similar to the parent plant
3. Population of plants produced vegetatively
4. All of the above

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.

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)