As unwinding of the helix occurs during DNA replication, tension referred to as is created ahead of the replication fork. This tension is relieved by the action of . supercoiling; DNA helicase supercoiling; DNA gyrase processivity; DNA gyrase supercoiling; single-stranded binding proteins processivity; primase

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

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a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

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