Which type of molecule is embedded throughout the phospholipid bilayer?

Integral membrane proteins, also called intrinsic proteins, have one or more segments that are embedded in the phospholipid bilayer. Most integral proteins contain residues with hydrophobic side chains that interact with fatty acyl groups of the membrane phospholipids, thus anchoring the protein to the membrane.

Explanation:

answer; a male inherits only one allele of the x-linked gene controlling hair color;

b is the correct answer