N the Watson-Crick model of DNA, the two strands of the double helix are united by hydrogen bonds between a.
nitrogenous bases

b.
phosphate groups

c.
nitrogen atoms

d.
sugar molecules

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Why do oceanic plates tend to subduction when colliding with a continental plate

Based on her survey, which advertising mediums will work best to publicize leslie's in-store specials?