Main articles: Growth hormone 1 and Growth hormone 2. Genes for human growth hormone, known as growth hormone 1 (somatotropin) and growth hormone 2, are localized in the q22-24 region of chromosome 17 and are closely related to human chorionic somatomammotropin (also known as placental lactogen) genes.
The short-run marginal cost (MC) curve will at first decline and then will go up at some point, and will intersect the average total cost and average variable cost curves at their minimum points.
The marginal cost curve is significant in the theory of the firm for two reasons: 1  It is the leading cost curve, because changes in total and average costs are derived from changes in marginal cost. 2  The lowest price a firm is prepared to supply at is the price that just covers marginal cost.