What is meant by the term photoreactivation repair?
What will be an ideal response?
Photoreactivation repair, discovered in 1949, is a process described in E. coli in which UV-induced DNA damage can be partially reversed if cells are briefly exposed to light in the blue range of the visible spectrum.
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The term antiparallel The term antiparallel
Which of the following are products of photosynthesis?
a. Oxygen and glucose b. Carbon dioxide and glucose c. Oxygen and hydrogen d. Chlorophyll and glucose
All steroids have
a. the same number of double bonds. b. one or more fatty acids. c. four rings of carbon to which other atoms are attached. d. the same functional groups. e. the same number and positions of double bonds.
During the menstrual cycle, what is the main source of progesterone in females?
A) placenta B) pituitary gland C) developing follicle D) corpus luteum