Which part of the nucleotide is responsible for the coding of specific traits in an organism? O The numbe rof hydrogen bonds.
O The number of carbons in the DNA molecule.
O The sequence of nitrogenous bases in the O DNA molecule.
The sequence of phosphates along each DNA strand.

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the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands