What is the MHC and what is its function?
What will be an ideal response?
The MHC, or major histocompatibility complex, is a set of proteins that are on the outer surfaces of various cells involved in immunity. They are specific for each individual; indeed only an identical twin would have the same MHC that you have on your cells. MHC allows your cells to recognize "self" from "nonself." This is critical in the recognition of foreign cells. Unfortunately, these same proteins may be implicated in rejection of transplanted tissues and organs.
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When a ___ hormone carrier protein complex contacts the surface of a cell, the hormone is released
and penetrates directly through the plasma membrane.
a. peptide b. steroid c. protein d. peptide and protein e. peptide, steroid, and protein
Which term describes species of shark that lay fertilized eggs outside the mother’s body?
a. viviparous b. ovoviviparous c. oviparous d. vivoviparous
____________________ equalizes the dosage of functional genes carried on the X chromosome in
males and females. Fill in the blank(s) with the appropriate word(s).
Water loss through the stomata of leaves is called
A) bulk flow. B) transpiration. C) guttation. D) translocation. E) osmosis.