B. specific to a substrate
Answer:
function as support cells
Explanation:
Neurons are structural and functional units of the nervous system. They are specialized cells that carry impulses from one part of the body to another. There are three main types of neurons in mammalian body. These are motor, sensory and intermediate neurons.
The genetic code is considered universal because the same four nucleotide bases are used by all known organisms
Answer:
when an organism is homozygous at the locus
Explanation: