What step in dna replication precedes the pairing of complementary bases?
a. polymerization of dna.
b. separation of the two strands.
c. formation of the histone core.
d. joining of the two strands.
e. mitotic division.

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

Which enzymes break down carbohydrates?

Which prefix mean under less or below