Which of the Following Characteristics Is Unique to Multigene Families

Multiple Choice

Which of the following characteristics is unique to multigene families?

A) Multiple genes whose products must be coordinately expressed.
B) Genes whose sequences are very similar and that probably arose by duplication.
C) Genes whose exons can be spliced in a number of different ways.
D) A highly conserved gene found in a number of different species.