When bacteria undergo transformation, they can be identified by?

Nucleotides
Genetic markers
Telomeres
Polyploidy

Which group of chordates does  notpossess true backbones?                 a.  birds      b.  frogs and toads      c.  lampreys      d.  crocodilians

What advantages does a pedigree have over a written passage?

Which of the following determines the specificity of a dna probe? a. type of radiation b. level of enzymatic activity c. number of neutrons d. complementary base pairing