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Biology-Related Homework Help Genetics and Developmental Biology Topic started by: ppk on May 6, 2011



Title: A girl begins to develop breasts and pubic hair at the age of four
Post by: ppk on May 6, 2011
A girl begins to develop breasts and pubic hair at the age of four. Given these symptoms, her physician orders a CT scan (imaging procedure) to look for an endocrine tumor. Which organ would he most likely not investigate as the cause?
Explain your reasoning.

a. hypothalamus
b. pituitary
c. ovary
d. uterus


Title: Re: A girl begins to develop breasts and pubic hair at the age of four
Post by: duddy on May 7, 2011
Hyperactivity of the hypothalamus, pituitary, or ovary, in the form of a tumor, could produce early onset of sexual maturation or puberty by overproducing hormones involved in puberty. However, because the uterus produces no hormones, a tumor in this region would not result in early puberty.