DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Lagging strand
Okazaki fragments
Primers
Leading strands

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DNA Structure and Replication
The higher order structure of DNA shows symmetry, whereas the higher order structures of most proteins do not. Why isn't protein shape more regular like DNA?

All of these
DNA has one main function in cells whereas proteins have many.
Some S amino acids cause proteins to bend; others cause protein to flatten.
The many different amino acid R groups on proteins confer many different shapes.

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DNA Structure and Replication
Nucleosome is

an octamer of four histones without H1 protein
an hexamer of three histones without H1 protein
an hexamer of three histones with H1 protein
an octamer of four histones with H1 protein

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