During the sequencing of the chimpanzee genomes, a gene (cmah) was identified that completely lost an exon in human when compared to chimpanzee. scientists have found no evidence of the protein or its enzyme function in any human tissue although the protein is fully functional in chimpanzee. the normal function of the gene is to add modified sialic residues to proteins on the cell membrane. the loss of the exon is found in all humans that have been examined, but the gene is conserved in all other primates and mammals

Imagine a person stepping on a pin and pulling his or her foot away. look at the reflex arc of this scenario below. which statement best describes the image? a)the sensory nerve carries the signal from the effector to the interneuron, and the motor neuron carries the signal to the receptor. b)the motor nerve carries the signal from the receptor to the interneuron, and the sensory neuron carries the signal to the effector. c)the sensory nerve carries the signal from the receptor to the interneuron, and the motor neuron carries the signal to the effector. d)the sensory nerve carries the signal from the receptor to the motor neuron, and the interneuron carries the signal to the effector.