in humans dark hair (D) is dominant over blonde (d). If a heterozygous dark haired man had a son with his blonde haired wife, what is the probability that the son would have dark hair like the father?

coal is not sustainable because it will one day run out.

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."

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