Which one of the following statements best describes the first thing researchers need to do to manipulate dna? a. gel electrophoresis would be used to separate fragments of dna. b. restriction enzymes would be used to cut the dna into smaller pieces. c. researchers would need to separate synthesized strands by size on a gel. d. single-stranded dna fragments would be placed with dna polymerase in a test tube.

Galaxy whose shape seems different follow no set pattern are classified as

Arrange these elements of the intrinsic conduction system in the order that a depolarizing impulse travels during a normal heartbeat. rank from first to last. do not overlap any tiles. view available hint(s) reset av nodeav bundleinternodal pathwaysbundle branchessa nodepurkinje fibers

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.