Using the punnet square (di-hybrid cross) solve the following: In a certain breed of dog, the dominant, B, is required for black fur; and it’s recessive, b, produces brown fur. However, the dominant, I is the epistatic gene to the color locus and can inhibit pigment formation.  The epistatic recessive allele, i, on the other hand, permits pigment deposition in the fur.       -Cross the following parents:     bbIi x BBIi 1st Question to answer ---- How many different possible genotypes are there among the offspring? 2nd Question to answer ---- How many of the offspring could be black? 3rd Question to answer ---- How many of the offspring could be brown? 4th Question to answer ---- How many of the offspring could be albino (white)? Different Possible Genotypes                                 Black Offspring                                     Brown Offspring                         Albino/White Offspring

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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.