The correct answer is: A. The genes for insulin production are not activated in heart cells.
Explanation:
<u>DNA </u><u>is present in practically every cell in an organism</u>, but not every cell performs the same tasks as the rest. This happens because genes in the DNA <u>code for different types of proteins</u>, from enzymes to transporters, that impact greatly on the <u>function</u> of a cell; and these genes can be activated or inactivated which will directly correlate to the type of cell and the function that it has.
<u>If the cells in the pancreas can produce insulin but the cells in the heart can't it's because the cells in the heart have the genes for insulin production inactivated</u>.
The amount of mitochondria and ribosomes does not directly affect the production of insulin.
The meningeal branch of a spinal nerve actually renters the
vertebral canal to innervate the meninges and blood vessels. Hiccups
could happen if there was irritation or damage to the motor branches of ventral
rami together with the C3-C5 region of the spinal cord and Irritation<span> of the phrenic nerve may cause diaphragm spasms called hiccups.</span>
