Katie wants to make ball-and-stick models of the four macromolecules. she has colored balls for each of the elements in these molecules, including the following.

red: hydrogen
black: carbon
purple: oxygen
green: nitrogen

in which macromolecule will she use the black, red, and purple balls in a ratio of 1: 2: 1

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Will mark you as ! keiko’s teacher was discussing the theory of endosymbiosis. she asked keiko to mark the organelles in the diagram that most closely resembled prokaryotes. which organelles should keiko mark? * the first image is the question and the second image is some information to you answer the !

Step 1 review the imaginary strand of dna below. note the complementary base pairs. a g c a a t c c g t c t t g g t c g t t a g g c a g a a c c step 2 to begin replicating this strand of dna, draw the two sides of the strand separating. step 3 now, draw the free-floating bases linking up with the separate sides. remember to follow the rules of complementary base pairing. step 4 draw the two resulting dna strands.