In a species of tropical fish, a colorful orange andblack variety called montezuma occurs. When twomontezumas are crossed, 2/3 of the progeny are montezuma and 1/3 are the wild-type, dark grayish greencolor. Montezuma is a single-gene trait, and montezuma fish are never true-breeding.a. Explain the inheritance pattern seen here and showhow your explanation accounts for the phenotypicratios given.b. In this same species, the morphology of the dorsalfin is altered from normal to ruffled by homozygosity for a recessive allele designated f. What progenywould you expect to obtain, and in what proportions, from the cross of a montezuma fish homozygous for normal fins to a green, ruffled fish?c. What phenotypic ratios of progeny would be expected from the crossing of two of the montezumaprogeny from part (b)?

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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.