25 To fill the demand for white owls, Hagrid is interested in breeding snowy whi

Question

25 To fill the demand for white owls, Hagrid is interested in breeding snowy white owls for Hogwarts students. He obtained two true-breeding snowy white owls. When he mated the owls he obtained all brown owls. However, when he mated the F1 brown owls, he obtained the following offspring: Brown owls Snowy white owls Pearl owls Total 93 56 160 What are the genotypes of the original owls? What are the genotypes of the Fl owls? What are the genotypes and corresponding phenotypes of the F2 owls? What type of inheritance is illustrated in this cross? What is the null hypothesis? What is the Chi Square value? What are the degrees of freedom for this cross? Do you accept or reject the null hypothesis and why?

Explanation / Answer

100 x1/4 =25

Degrees of freedom = 2-1 =1

chi square value = 407

The hypothesis is incorrect. The Difference between observed and expected is very high.

The hypothesis is rejected. The deviation is not due to change alone.

B B b Bb Bb b Bb Bb

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