Consider the following statements
1. Introduction of foreign genes for improving genotype is genetic engineering.
2. Genetically engineered human insulin is manufactured by the use of E. coli.
3. Advancement in genetic engineering has been possible due to discovery of restriction endonuclease.
4. First hormone prepared by genetic engineering is insulin.
Which of the statements given above are correct about genetic engineering?

A) 1, 2, 3 and 4
B) 1, 2 and 3

C) 1 and 2
D) 1, 3 and 4

Correct answer:
A) 1, 2, 3 and 4


Please provide the error details in above question

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