Biology, 19.12.2019 21:31 pagezbills18

Before recombinant dna techniques became available, human growth hormone was
a) recovered from pituitary glands removed from human cadavers.
b) recovered from cow blood.
c) isolated from children who produced excessive amounts of the hormone.
d) collected from many sources, such as slaughterhouses. isloated from chicken eggs.

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Before recombinant dna techniques became available, human growth hormone was
a) recovered fr...

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After hormones reach cells, the cells send a chemical signal back to the gland. the signal alerts the gland to continue or two stop secreting hormones...