Replicating structures in dna can be observed in the electron microscope. regions being replicated appear as bubbles. a. assuming bidirectional replication, how many origins of replication are active in this dna molecule? b. how many replication forks are present? c. assuming that all replication forks move at the same speed, which origin of replication was activated last?

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. agouti x albino a) 1/2 albino, 1/2 agouti b) all agouti c) 3/4 agouti, 1/4 albino

Match each term to its best definition? sedimentary depositional enviornment