Question

Before recombinant DNA techniques became available, human growth hormone was ___________.

Answer 1

Answer:

a) recovered from pituitary glands removed from human cadavers.

Explanation:

• The human growth hormone is responsible for growth along with cellular proliferation and reproduction in humans.
• The hormone is secreted by the pituitary gland.
• Therefore, before the recombinant DNA techniques were available the hormone was isolated from the pituitary glands fo human cadavers.
• However, this method was not continued because the extract hormone became a source of infection for diseases such as the Creutzfeldt-Jakob disease.
• Therefore, alternatives were looked for and with the advent, in recombinant DNA techniques, the scientist was able to successfully make the recombinant human growth hormone as well.