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Why is DNA considered important in living organisms?
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7. DNA and Chromosome Structure
DNA as the Genetic Material
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Which of the following can be achieved by obtaining a small amount of a person's DNA?
A
Determination of the individual's blood glucose level
B
Identification of the individual through DNA profiling
C
Assessment of the person's metabolic rate
D
Direct measurement of protein synthesis rates
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Understand that DNA contains the genetic information unique to each individual, which can be used for identification purposes.
Recognize that blood glucose level, metabolic rate, and protein synthesis rates are physiological or biochemical traits that require different types of measurements, not just DNA analysis.
Recall that DNA profiling involves analyzing specific regions of the DNA that vary greatly between individuals, allowing for unique identification.
Note that obtaining a small amount of DNA is sufficient to perform DNA profiling techniques such as PCR amplification and gel electrophoresis to generate a DNA fingerprint.
Conclude that among the options, only identification of the individual through DNA profiling can be achieved directly from a small DNA sample.
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