What day is considered to be the first day of a female’s reproductive cycle? When hormone levels are low and the uterus lining is shed. When hormone levels are high and the uterus lining is shed. When hormone levels are low and the ovary releases an egg. When hormone levels are high and the ovary releases an egg.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.