In addition to a 5-carbon sugar andra nitrogenous base, a
nucleotide contains...
A. a sulfur group.
B. a phosphate group.
C. an oxygen group.

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers