In the peripheral nervous system, ACh is the neurotransmitter at the neuromuscular junction between the motor nerve and skeletal muscle. Figure 11.3. Distribution of cholinergic cell groups and projections in the rat brain.n the peripheral nervous system, ACh is the neurotransmitter at the neuromuscular junction between the motor nerve and skeletal muscle. Figure 11.3. Distribution of cholinergic cell groups and projections in the rat brain.
Describe your reasoning. As guanine and cytosine are complementary, another 15% of the nucleotides must have cytosine. The remaining 70% of the nucleotides (100%-30%) must have adenine and thymine in equal proportions (35% each), as they are complementary to each other.f 15% of the nucleotides in a DNA molecule contain guanine, what percentage of the nucleotides having each of the other three bases?
The DNA structure shows important information on how DNA replication occurs. The pairing pattern of the nitrogen bases is the key to understanding how it occurs. The four nitr â¦ ogen bases are adenine, thymine, guanine, and cytosine. Only adenine and thymine pair together and only guanine and cytosine pair together.ell's nucleus. It contains the majority of the genetic code for  the cell. The nucleus maintains the integrity of the cell and  regulates cell replication.