A short stretch of RNA with a free 3' end, bound by complementary base pairing to the template strand, that is elongated with DNA nucleotides during DNA replication.
Two general types of cells are found in the nervous system: neurons and neuroglia. A. Neurons 1. Consist of three main partsâdendrites (conduct impulses to cell body of neuron); cell body of neuron; and axon (conducts impulses away from cell body of neuron) 2.he nervous system transmits information rapidly by means of nerve impulses conducted from one body area to another. The nervous system is made up of the brain and spinal cord, and the many nerves of the body.
Nerves. There are three main types of neurons in the nervous system: 1  Sensory Neurons: Conduct nerve impulses from receptors to the CNS (afferent pathway). 2  Relay Neurons: Conduct nerve impulses within the CNS (also called interneurons or connector neurons).he nervous system contains a specialised network of cells called neurons and coordinates the actions of complex organisms via the transmission of electrochemical signals. The nervous system can be divided into two main parts: