A person takes a medication that blocks their neurons' ability to be stimulated by a specific chemical
signal. What part of the neuron is most likely being affected by the medication?
a. axon terminals
b. the axon
c. dendrites
d. the cell body
e. nucleus
C
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The master gene Hox helps to sculpt the body
plan of embryos by a. inhibiting the Dlx gene to prevent extra limbs. b. timing the activation of Dlx genes. c. causing cell death in any cell not expressing the Hox gene. d. converting sugar into energy to allow the process to go to completion. e. inducing mutations in plants.
Males with Klinefelter syndrome lack a Barr Body
_______________ Indicate whether the statement is true or false.
In plants, cytokinins stimulate
a. cell division. b. cell elongation. c. cell enlargement. d. fruit ripening.
Which of the following structure contains the cells genetic material ?
a. cytoplasm b. nucleus c. mitochondria