Dna replication results in two identical dna molecules. what role do dna helicases have in dna replication?

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

Enzymes are proteins that speed up reactions by providing an additional energy source supplying additional molecules for the reaction removing inhibitors that slow down reactions lowering the amount of energy required

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi