Which of the following accurately demonstrates the dna base pairing rule? a. a-t b. c-t c. g-a d. c-u how can scientists use dna in crime scene investigations? a. they analyze the size of the dna to determine where a crime was committed b. they analyze the gc content of the dna to determine how a crime was commited c. they analyze the sequence of bases in the dna to determine who committed a crime d. they analyze the age of the dna to determine when a crime was comitted

The answer is A. Adenine pairs with Thiamine while Cytosine pairs with Guanine. Uracil pairs with Thiamine in RNA-DNA duplex.

The answer is C. Forensic science utilizes this complimentary of base pairs to determine the sequence of DNA sampled from a crime scene. They utilize PCR reaction to amplify the DNA and then run the amplified DNA through gel electrophoresis. The formed bands are then compared to those of suspects in the crime.

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