What does a growth factor/ligand bind to activate a cell signal?

a. cytoplasmic tail
b. cell surface receptor
c. phosphate group
d. growth factor


Ans: b. cell surface receptor

Biology & Microbiology

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What is the role of RAG1 and RAG2 in immunoglobin rearrangement?

What will be an ideal response?

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Blood flows from the efferent arterioles directly into the peritubular capillaries. Indicate whether the statement is true or false

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Chordates are characterized by having a ________, a dorsal, flexible supportive rod.

Fill in the blank(s) with the appropriate word(s).

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