Brain death is characterized by the loss of function of the whole brain, also including the brain stem itself. Brain death is caused by many factors, it may be caused by severe head injuries, brain tumors or even by aneurysm.
The acetylcholinesterase breaks down into acetylcholine in
order to prevent additional firing of neurons in which may be found in the
neuromuscular junction. The acetylcholinesterase is considered to be an enzyme
that is usually found in the autonomic nerve, the endings of voluntary nerves
and the parasympathetic involuntary nerves.
Answer:
The correct answer to the question: What would be the impact of a significant mutation of these phage proteins? Would be, D: The phage may not be able to bind to Salmonella´s surface, blocking viral infection.
Explanation:
Bateriophages are viruses that are capable of infecting bacterial cells and using them as hosts, until they are destroyed. Just like in the human body, however, these phages depend on the presence of certain characteristics in the bacterial cell membrane to be able to infect its host and inject its genetic material. Science has found that bacteriophages use two ways of infecting a bacterial cell; a tail that is able to pierce certain portions of the membrane, but certain conditions must be present on the bacteria for such a thing to be possible, and by using certain proteins on the bacterial wall, to connect to it. Due to evolution, bacteria are highly capable of adapting, and some, especially highly resistant strands, have been seen to form mechanisms to resist against phages. One such changes has been in the availability of membrane proteins, such as OmpF and ToIC, which are vital for phage infection of a bacterial cell. These changes in proteins have reduced the capacity of bacteriophages to infect bacteria, such as in this case, Salmonella enterica.
Answer:
Phenylketonuria, Cystic Fibrosis and Sickle Cell Anemia, these all are disorders caused by hereditary mutation.
Hope it helps!