Cloning

Q.

Which Is The First Genetically Modified Sheep?

Q.

What are the two methods used to create transgenic animals?

Q. Cloning is done by fusing nucleus of a male gamete with an enucleated ovum.

1. False
2. True

Q.

The stors of cloning of Dolly

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. All of these

Q.

The first cloning was done on a ___.

1. goat

2. sheep

3. cow

4. deer

Q. First transgenic sheep were carrying

1. genes for $\beta$- lactoglobulin
2. Genes for Antihemophilic IX
3. Genes for Thyroxine
4. More than one correct answer

Q.

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

1. Cell cloning

2. Gene cloning

3. Animal cloning

4. All of these

Q. __________ was the first successfully cloned mammal.

1. Dolly, the sheep
2. Dolly, the dog
3. Dolly, the hen
4. Dolly, the pig

Q. Efforts to repeat the cloning of Dolly (the sheep) have been unsuccessful. The scientists who claim to have cloned Dolly have been challenged to produce additional evidence that Dolly is really derived from an adult cell (an originally claimed), rather than a foetal cell which might have contaminated the experiment (as the sceplor suggest). Which of the following could provide evidence that Dolly was created from an adult cell, rather than a foetal cell?

1. Dolly's DNA fingerprints
2. The melting point of Dolly's DNA
3. The heterozygosity of random pieces of Dolly's DNA
4. The length of Dolly's telomeres

Q. is the process of generating an identical copy of an organism naturally or artificially.

1. Cloning
2. DNA fingerprinting
3. Regenerative therapy

Q. 'Nif' gene for nitrogen fixation in cereal crops like wheat, jowar etc., is introduced by cloning.

1. Agrobacterium tumefaciens
2. Rhizopus stolonifer
3. Bacillus thuringiensis
4. Rhizobium meliloti

Q. In case of dolly , mother was finn dorsett sheep sperm was taken from?

Q. The question in lines 18-20 (Why else . . . first place) chiefly serves to

1. Suggest that some issues are not easily resolved
2. Argue for the importance of parents in the lives of children
3. Offer an anecdote revealing the flaw in a popular
   misconception
4. Imply that cloning might displace more familiar means of reproduction
5. Suggest the value perceived in a person who might be selected for cloning

Q. Why is fertilisation also called amphimixis?

Q. How are clones produced in plants?

Q. The following are the events in the formation of the first cloned animal the sheep Dolly.
a) Removal of haploid nucleus from the ovum.
b) Implantation of ovum with diploid nucleus into the surrogate mother.
c) Collection of udder cell from the sheep.
d) Injection of diploid nucleus of udder cell into the enucleated ovum.
e) Development of a young clone.

1. cadbe
2. cabed
3. edcba
4. abcde

Q. MOET and Artificial insemination are examples of

1. Artificial breeding
2. None of the above
3. Inbreeding
4. Outbreeding

Q. __________ was the first successfully cloned mammal.

1. Dolly, the sheep
2. Dolly, the dog
3. Dolly, the hen
4. Dolly, the pig