EASY SCIENCE QUESTION NEED HELP URGENTLY In mitosis, replication occurs before the cell divides. What is the purpose of replication?
1) to provide each new cell with an exact duplicate of the original DNA
2) to transfer half of the traits of the parent cell to each new daughter cell
3) to remove defective base pairs from the DNA before the parent cell divides 4)to divide the parent cell's genes equally between the two new daughter cells​

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

then go eat. lol.brainliest