The sciatic nerve is a sensory motor nerve with two divisions that innervate the muscles behind and below the knee. These divisions are the tibial and peroneal nerves. The sciatic nerve is a sensory nerve that originates from the 7th lumbar vertebrae and sacrum of a dogâs spinal cord.
1 Because prokaryotic DNA can interact with the cytoplasm, transcription and translation occur simultaneously. 2  Most prokaryotes contain only one copy of each gene (i.e., they are haploid). 3  Nonessential prokaryotic genes are commonly encoded on extrachromosomal plasmids.
1 Prokaryotes have the potential to reproduce quickly in a favorable environment. 2  Prokaryotes reproduce asexually via binary fission, synthesizing DNA almost continuously. 3  While most prokaryotes have generation times of 1â3 hours, some species can produce a new generation in 20 minutes under optimal conditions.