In a DNA molecule,the sugar-phosphate backbone is the same in everyone,but the base sequence is different in everyone.A plasma membrane is similar conceptually to DNA in that
A)the lipid bilayer is the same in everyone,but the nature and pattern of the molecules embedded in it differ.
B)the pattern of embedded proteins in the plasma membrane is the same in everyone,but the lipid bilayer differs.
C)the lipid bilayer and pattern of embedded proteins differ in everyone.
D)the lipid bilayer is the same in everyone,but some people have the embedded proteins sticking out of the outer face of the membrane,and others have the proteins extending inwarD.

Question

Quizplus · Accepted Answer

The sugar-phosphate backbone of DNA is the same in everyone, just as the lipid bilayer of a plasma membrane is the same in everyone. However, the base sequence of DNA is different in everyone, just as the nature and pattern of embedded molecules in a plasma membrane differ. Therefore, choice A is the best answer.

In a DNA Molecule,the Sugar-Phosphate Backbone Is the Same in Everyone,but