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solong [7]
3 years ago
6

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

Biology
1 answer:
ser-zykov [4K]3 years ago
6 0

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.
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<h3>What is centrifugation?</h3>

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It is the frequently applied techniques in the molecular biology laboratory.

The addition of alcohol or ethanol to the sample followed by centrifugation can separate the proteins from its DNA.

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