Alfred is heterozygous for tongue rolling and has five fingers and Alfreda, his wife, cannot roll her tongue and is heterozygous for polydactyly.  If Alfred's genotype is Rr, pp and Alfreda's genotype is Rr, Pp then..  a) What are Alfred’s possible spermwith regard tothese two traits?  b) What are Alfreda’s possible eggswith regard tothese two traits? c) What is the probability that their first child will not roll its tongue and will have the normal number of fingers?

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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.