Comparative Study of DNA or Proteins from Different Species Often

Multiple Choice

Comparative study of DNA or proteins from different species often demonstrates different relatedness of organisms that a study of morphology. This is because

A) some organisms may be related, but have no morphological similarity.
B) all proteins from a similar DNA sequence have the same function.
C) chloroplast DNA more accurately demonstrates the relatedness of plants as it has changed little with evolution.
D) point mutations in DNA may lead to very different organisms being produced.
E) most organisms have similar genes, so small changes in sequence have large morphological effects