Answer:
sorry I have no idea hope u get the answer tho :)))
These molecules need to pass through specific proteins or transmembrane proteins embedded in the cell membrane. A specific type of an integral membrane protein.
The given mutation of the DNA segment ctc ctc ttc to ctc ctt ttc is a known type of mutation in the gene for beta-globin. The translated protein remains unchanged because both the CTT and CTC codons code for the amino acid glutamic acid.
Myocardium, that's because myocardium simply means 'muscular tissue of the heart'. It is not pericardium or connective tissue as these are only small, specific areas of the heart and a heart attack can cause cells to die anywhere in the heart.