A student comes across these numbers for the F1 progeny when they crossed a white, spotted fish and a blue, spotted fish. The student suspects that lethal alleles may be responsible for the following observed numbers. Assume color is controlled by the allele A/a and pattern is controlled by the allele B/b; F1: 338 white, spotted 341 blue, spotted 177 white, striped 163 blue, striped What is the dominant allele? Which allele has a lethal combination? Propose a hypothesis for the genotypes of the parents that explains the observed ratio and use chi squared to confirm your hypothesis:

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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.