The transmembrane region of protein is likely to have:

Ans. (b) A stretch of hydrophobic amino acids(Ref: Ganong, 25th ed/p.)Integral membrane proteins are also called as Transmembrane proteins because they are present in both inside and outside of membrane. They have both hydrophilic and hydrophobic regions (Amphipathic)Hydrophobic region is present inside and hydrophilic region is present at the ends of bilayer