<span>Some amino acids have multiple different codons that can code for them. So for some point mutations, one wrong nucleotide in a codon may still allow it to code for the same amino acid. For example. Serine has 4 different possible codons which can code for it. UCA, UCC, UCU, and UCG. Note that if the last letter were change in any instance, it would still code for serine. There are MANY other examples for this question; almost all amino acids have more than one codon which can code for it.</span>
Answer:
Selective permeability is a property of a cell membrane that allows it to control which molecules can pass (moving into and out of the cell) through the pores of the membrane
Explanation:
The membrane is selectively permeable because substances do not cross it indiscriminately. Some molecules, such as hydrocarbons and oxygen can cross the membrane. Many large molecules (such as glucose, <u>Celluloso </u> and other sugars) cannot. Water can pass through between the lipids.
The easiest way to explain it is.. it keeps it from exploding lol