The features indicated in the sagittal section of the right half of the human brain include
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body, corpus callosum; crus, fornix; cingulage g.; central fissure;
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</span> <span>splenium, corpus callosum; precuneus; parietooccipital; cuneus; pineal body; calcarine fissure; lingual; sup. colliculus; vermis; inf. colliculus; cerebellum; cerebral aqueduct; fourth ventricle; medulla oblongata; pyramid; post. Commissure; basilar pons; cerebral peduncle; oculomotor n. III; mamillary body; uncus; infundibulum; optic chiasm; olfactory bulb; third ventricle; ant. commissure; gyrus rectus; column. fornix; genu, corpus callosum; choroid plexus interventricular foramen; sup. frontal g.; septum pellucidum; and dorsomedial nuc., thalamus</span>
The first one. Gametes are the reproductive cells: sperm and egg cells. These contain the info that is passed on to the offspring, so an inherited mutation must be present in the gametes.