Fruit bats can have ear shape [pointed and small (P) or oval and large (O)], and nose size [narrow (N) or wide (W)]. Assume that each trait is caused by a single gene in which one allele is completely dominant to the other.

Look at the table to the right and determine the dominant and recessive alleles for ear shape and nose size.

Once you've figured those out, you can next determine the genotypes of the parents.

PHENOTYPE (Letters) and Quantity of Progeny (Numbers)
PARENT
OFFSPRING
Male Female PW OW PN ON
(Row 1) PN PN 0 0 66 0
(Row 2) PW OW 0 52 0 10
(Row 3) OW OW 0 51 0 15

EAR SHAPE

Dominant symbol
Recessive symbol

NOSE SIZE

Dominant symbol
Recessive symbol