Which of the following cells are involved in cell-mediated immunity and also respond to class I MHC molecule-antigen complexes?
A) cytotoxic T cells
B) natural killer cells
C) helper T cells
D) macrophages
E) B cells
Answer: A
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Diffusion of morphogens--products of master genes--creates gradients that cause the differential
expression of other genes such as __________, which govern the formation of specific body parts. Fill in the blank(s) with the appropriate word(s).
What are Skeletal muscles responsible for?
What will be an ideal response?
The flow of genetic information goes from RNA --> DNA --> protein. If false, make it a correct.
a. true b. false
When glucose levels are high in the body, insulin causes the excess glucose to be converted into glycogen. When glucose levels are low, the hormone glucagon causes the conversion of glycogen back to glucose. This process is known as:
A) Krebs cycle reaction B) Gluconeogenesis C) Glycogenolysis D) Glucogenesis