In Loppins (Fictitious Diploid Invertebrates),ear Shape Is Controlled by Two

question 22

Multiple Choice

In loppins (fictitious diploid invertebrates) ,ear shape is controlled by two genes with two alleles each;upright ears (F) is dominant to floppy ears (f) ,and double-pointed ears (P) is dominant to single-pointed ears (p) .Moreover,due to genetic interactions,floppy ears are always single-pointed.A loppin with floppy ears is crossed to a loppin with upright single-pointed ears,and the phenotypic ratios in the offspring are 2 floppy : 1 double-pointed upright : 1 single-pointed upright.What are the genotypes of the parents?

• A)p/p;f/f and p/p;F/f
• B)P/p;f/f and p/p;F/F
• C)P/p;f/f and p/p;F/f
• D)P/P;f/f and p/p;F/F
• E)P/p;F/f and p/p;F/f

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