Answer:
The muscular system can be broken down into three types of muscles: skeletal, smooth and cardiac. The muscles in the body support movement, help maintain posture, and circulate blood and other substances throughout the body. ... It pumps out 2 ounces (57 grams) of blood with every heartbeat.
Explanation:
Answer: Option A) How many codons make up a typical mRNA molecule?
Explanation:
A messenger RNA (mRNA) molecule is a class of RNA molecules, each of which is complimentary to one strand of DNA. It carries the genetic information of genes from the chromosomes to the ribosomes where the information is translated into the amino acid sequence of a polypeptide.
Thus, the codons on a typical mRNA molecule differs from the DNA template strand by the presence of URACIL (U) instead of thymine (T).
Answer:
ligand; molecule; ligand; molecule; nervous system
Explanation:
Ligand-gated ion channels are membrane proteins that interact with ligands (molecules) and open in response to this binding. In the nervous system, these channels are activated by neurotransmitters (ligands) that regulate synaptic transmission between nerve cells (neurons). Neurotransmitters are signaling molecules clustered close to the cell membrane of axon terminals in presynaptic neurons. For example, glutamate is a ligand neurotransmitter that binds to ion channels and thus stimulates synaptic activity in the mammalian brain.
<h2>Operon </h2>
Explanation:
The possible explanation of the increased synthesis of the protein by an occasional mutation in the promoter is that the mutation could occur in the enhancer sequence
This specific region, enhancer are 200 base pair long DNA elements that is present either upstream or downstream to the transcriptional start site
Activity of enhancer is orientation independent and provide binding site for activators(activators are large proteinaceous complex that initiate transcription)
