A translocation between chromosomes 8 and 14 results in an enhancer element in direct control of the c-myc gene. If the enhancer element leads to over- expression of c-myc, this mutation is called:. a. a loss of function mutation
b. a checkpoint mutation
c. a mutation that leads to apoptosis (death) of cells
d. a gain of function mutation
e. a transposon mutation
f. a targeted mutation

b

explanation:

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a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.