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Which one is the incorrect statement with regards to the importance of pedigree analysis?

1. It helps to trace the inheritance of a specific trait
2. It confirms that DNA is the carrier of genetic information
3. It helps to understand whether the trait in question is dominant or recessive
4. It confirms that the trait is linked to one of the autosome

Correct answer: It confirms that DNA is the carrier of genetic information

Solution

Pedigree analysis is useful for tracking how a trait passes through generations and for inferring whether it is dominant, recessive, or autosomal. However, it cannot prove that DNA is the genetic material; that conclusion comes from experiments in molecular genetics.

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