Sarah and George have been married for 6 years. They had a daughter 5 years ago and her blood type is AB. Sarah had complications during her birth and was transfused with three pints of type A blood. The couple recently welcomed a new baby boy to their family. He has the blood type O. What are Sarah and George’s genotypes? Select one: a. Sarah's Genotype George's Genotype   IAIA  ii b. Sarah's Genotype George's Genotype  IAi  IBi c. Sarah's Genotype George's Genotype  IAi  IBIB d. Sarah's Genotype George's Genotype  IAIA   IBi

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A:

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.