Which of these statements about the composition of biological membranes is not correct?
a. the composition of lipids and proteins differs between different species and in different types of cells in a single organism
b. the two leaflets of a membrane bilayer have different lipids and compositions
c. the cell membranes and mitochondrial membranes of vertebrate animals have different lipid compositions.
d. when phosphatidylinositol is on te outer monolayer of the cell membrane bilayer, it marks the cell for destructions.
e. the flip-flop movement of lipids is required to generate the transbilayer asymmetry in lipid composition

The correct answer is A) DNA sequences.

Explanation:

Evolutionary relationship determine the closely related ancestors of a particular organism. So it can help in tracing the evolutionary information about that organism. Phylogenetic classification use evolutionary relationship to identify new species.

The evolutionary relationship is determined by using a method called DNA sequencing which checks the similarities between DNA sequences within two individuals. More the similarities between the DNA sequences more closely they are related to each other.

But in prokaryotes mostly 16s rRNA sequences are used to determine the evolutionary relationship because most of the sequences are conserved in 16s rRNA. Therefore the correct answer is A) DNA sequences.