Peptide hormones are:
A. synthesized by the ribosomes of endocrine cells.
B. synthesized in the nucleus of endocrine cells.
C. synthesized out of the amino acid tryptophan.
D. the least prevalent type of hormone in the body.
E. manufactured cooperatively by the mitochondria and smooth endoplasmic reticulum.
A
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Hydatid mole is a type of pregnancy that, without medical intervention, frequently results in the death of the mother. The hydatid mole is thought to result most often from an abnormality in fertilization, such that the egg has two copies of paternal chromosomes, and no maternal DNA. A fetus fails to develop; instead there is rapidly growing chorionic tissue in the placenta, which secretes hCG
and thus leads to a positive pregnancy test and outward signs of pregnancy. The first clue to the obstetrician that the pregnancy is abnormal is often the lack of a heartbeat in the first trimester. A. What is the genotype of the hydatid mole tissue? From the genotype alone, would most science -literate students predict that a normal embryo would form? Explain, indicating what this suggests about maternal and paternal contributions to the embryo. B. The most common cause of molar pregnancy-related maternal death is a type of cancer called choriocarcinoma, with the hydatid mole being the source and thus resembling a tumor. What characteristic of tumors leads to cancer? C. While these pregnancies often spontaneously abort, some women may elect to terminate a hydatid molar pregnancy. Is this a special case of elective abortion or is it tumor-removal? Explain.
Public health veterinarians typically work for whom?
What will be an ideal response?
How does the CNS communicate with the rest of the body?
A. Through a network of fibrous interconnections between each organ and a specific target within the CNS B. Primarily through hormonal action C. Through a system of neuronal links known as connectors D. Through pathways that travel through white matter of the brainstem and spinal cord to connect various CNS regions with peripheral nerves E. Through direct connections based on a one nerve-one function process
Which hormone group is not secreted by the adrenal cortex?
A. Mineralocorticoids B. Glucocorticoids C. Corticosteroids D. Gonadocorticoids E. All of the choices are correct.