MEDizzy - The cross between a true breeding sphere shaped and a long

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metabolism - Set 3

The cross between a true breeding sphere shaped and a long shaped squash gives 30 sphere squash in F2. What is the total number of expected progeny?

ExplanationIn F the sphere and the long progenies should be produced in a 3:1 ratio. Thus sphere being 30, there must be 10 long. Thus the expected total number is 30+10= 40.