It became apparent to watson and crick after completion of their model that the dna molecule could carry a vast amount of hereditary information in its in an analysis of the nucleotide composition of dna. which of the following is true?
a) the strands that make up dna are antiparallel.
b) this means that the nature of dna creates nonparallcl strands the 5' to 3' direction of one strand c) nuts counter to the 5* to 3' direction of the other strand.
d) base pairings create unequal spacing between the two dna strands.

c-reactive protein (crp) is an acute phase protein belonging to pentraxin family of proteins, whose levels increases 1000-fold or more in concentration in blood during the occurrence of an injury, inflammation or tissue death.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.