Question

In a certain mammals erect ears are dominant over dropping ears out of four offerings produced in F2 generation three had erect ears and one had dropping ears. What was the genotypes of parents

Answer 1

Answer:

EE × ee

Explanation:

E - Re-presents dominant character for erect ear

e - represents recessive character for dropping ear

In F1 generation the genotype is Ee

in the crossing over with same genotype we get in F2 generation genotype as

EE : Ee : ee = 1:2:1