Gene Knockout

Q. $\left(a\right)$ Why are transgenic animals being produced?
$\left(b\right)$ How can man benefit from the modifications introduced in transgenic animals?

Q. Assertion :Transgenic mouse is termed as 'super mouse ' because it is twice big in size than the normal mouse. Reason: In 'super mouse', the gene for human growth factor has been introduced and expressed.

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.

A transgenic mouse that has the one specific desired gene disrupted is called

1. knock out mice

2. clone

3. chimera

4. surrogate

Q. What is a knockout mouse?

1. Mouse with low stamina to physical exertion
2. Mouse with a gene removed from its genome
3. Mouse that gets knocked out when high decibel sound is used near it
4. None of the above

Q. In gene therapy, DNA is inserted into a cell to compensate for

1. Lack of copy DNA
2. Mutant alleles
3. Absence of plasmids
4. None of the above

Q. What is antisense technology?

1. RNA polymerase producing DNA
2. A cell displaying a foreign antigen used for synthesis of antigens
3. When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
4. Production of somaclonal variants in tissue cultures

Q. What is a knockout mouse?

1. Mouse with low stamina to physical exertion
2. Mouse with a gene removed from its genome
3. Mouse that gets knocked out when high decibel sound is used near it
4. None of the above

Q.

A transgenic mouse that has the one specific desired gene disrupted is called

1. knock out mice

2. clone

3. chimera

4. surrogate

Q.

Mutagenic nature of X-ray and UV-radiations was discovered by

1. Muller
2. Madam Curie
3. Beadle and Tatum
4. Hardy and Weinberg

Q. What is a knockout mouse?

1. None of the above
2. Mouse with a gene removed from its genome
3. Mouse that gets knocked out when high decibel sound is used near it
4. Mouse with low stamina to physical exertion

Q.

A transgenic mouse that has the one specific desired gene disrupted is called

1. clone

2. chimera

3. knock out mice

4. surrogate

Q. A plant containing variation in the genetic composition is an example of _________.

1. Genetic resources
2. None of the above
3. Gene pool
4. Chromosome

Q. The diagram shows the cloning of an animal. Which of the following options will be most closely related to the mitochondrial DNA of the cloned animal?

1. Nuclear DNA of animal 1
2. Nuclear DNA of animal 2
3. Mitochondrial DNA of animal 1
4. Mitochondrial DNA of animal 2
5. Mitochondrial DNA of animal 3