Secretion of human chorionic gonadotropin [HCG] only occur during pregnancy in the placenta. The concentration of this hormone increase rapidly during the first three months of pregnancy; the amount in the blood stream doubles every two to three days as the development of the placenta and embryo progress. The hormone reaches its maximum concentration peak around the sixth week of pregnancy and after this, its concentration decline.
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DNA is being transcribed into mRNA
Explanation:
The physical distance that separates them on the chromosome.
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Explanation:
zinc zn 30 65.38 u 30 34 30
Answer:
voluntary, you did it by will
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