When one dna molecule is replicated, the result is two dna molecules. what is true of the second dna molecule? a. it is identical or nearly identical to the first dna molecule. b. the sequence of bases, from top to bottom, is opposite the sequence in the first dna molecule. c. it is half the size of the first dna molecule. d. it is twice the size of the first dna molecule.

It is identical or nearly identical to the first DNA molecule.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure