Transgenic animals are produced for which of the following purposes?

1. To study-how gene are regulated and how they affect the normal functions of body and its development

2. To study of diseases

3. To obtain useful biological product

4. To test vaccine safety and chemical safety

Which of the following techniques serve the purpose of early diagnosis?

1. R-DNA technology

2. PCR

3. ELISA

4. Convential method of diagnosis (serum, urine analysis,etc.)

Which of the following statements is false?

1. Insulin was originally extracted from pancreas of slaughtered pigs and cattle

2. Animal insulin is difficult to obtain

3. Animal insulin is identical to human insulin

4. Non human insulin caused some patients to develop allergy

5. Recombinant DNA allowed scientists to insert a human insulin gene into a bacterial expression vector

6. Recombinant insulin is actually obtained from E.coli bacterial cell

Read the following four statements (A-D) about certain mistakes in two of them

1. The first transgenic buffalo, Rosie produced milk which was human alpha-lactal albumin enriched.

2. Restriction enzymes are used in isolation of DNA from other macro-molecules.

3. Downstream processing is one of the steps of R-DNA technology.

4. Disarmed pathogen vectors are also used in transfer of R-DNA into the host.

Which are the two statements having mistakes?

Genetically modified food is not desirable because

Which one of the following is not a property of DNA hybridization technique?

Which one is not an application of DNA fingerprinting ?