Use this information to answer thequestion: You have guinea pigs from two pure b

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Use this information to answer thequestion:

You have guinea pigs from two pure breeding lines. One line has black fur and red eyes the other line has white fur and blue eyes. When you cross them, all the F1 guinea pigs have black fur and blue eyes. When you cross the F1s to one another you get a total of 50 F2 offspring. There are 31 with black fur and red eyes, 15 with white fur and blue eyes, 2 with white fur and red eyes, and 2 with black fur and blue eyes. There are approximately equal numbers of males and females in each phenotypic category.

Question 5 f you were to do aX2 test on these data what would the expected value be for individuals with white fur and blue eyes 15 12.5 9.375 3.125 2 points Save Answer

Explanation / Answer

Ans. The above case being an example of a dihybrid cross consider it fits 9:3:3:1 genetic ratio. Then in such case for 50 F2 offsprings the expected value for the offsprings with white fur and blue eyes would be.

3/16 * 50 = 9.375

Therefore the expected value would be 9.375.

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