A recessive allele is shown in the phenotype
Rather, each myelin sheath insulates the axon over a single long section and, in general, each axon comprises multiple long myelinated sections separated from each other by short myelin sheath-gaps called nodes of Ranvier. ... In the CNS, axons carry electrical signals from one nerve cell body to another.
Answer:
R group is the part of an amino acid and that is only one that varies and is what defines its properties
D is the answer.
Formula A and B are written incorrectly.
Formula C has 4 carbons, 5 hydrogens and 3 oxygens.
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