Explain why combed yarns are more costly than carded yarns of the same fiber content and size

Combed yarns are more costly than carded yarns of the same fiber content and size because more fibers are fluffed up and aligned to create a smoother yarn. Carded yarns need lesser fibers creating  slightly fuzzier yarn. More fibers used means higher cost. 

no they are not always accurate because they can not give you a specific fortune reading they can not tell you exactly what’s gunna happen

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."