The 5' end of the DNA molecule is considered the , while the 3' end of the DNA molecule is considered the . a. end, middle

b. beginning, end

c. end, beginning

d. middle, end

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

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

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?