Answer:
<h2>No,</h2><h2>Phenotypic Ratio: 1 Chestnut : 2 Palomino : 1 Dilute</h2>
Explanation:
As given:
The chestnut (dark brown) allele and a diluting (pale cream) alleles show incomplete dominance, means that both the alleles in heterozygous condition show their effect. So the heterozygous show the phenotype which is intermediate of both the parents, here a horse heterozygous for these two alleles is a palomino.
There is in fact, no particular allele present for palomino, this phenotype only results due to having two different alleles for a gene. So, palominos can never be pure-breeding because they can never be homozygous.
Let P1 chestnut and P2 dilute,
Palomino is P1P2
The Punnett’s Square for palomino mated to palomino:
P1P2× P1P2
Gametes are: parent-1 P1 and P2 , parent-2: P
1 and P2
Progeny are: P1P1, P1P
2, P
2
P1, P2
P2
Genotypic Ratio: 1 P1P
1 : 2 P1P
2 : 1 P2P
2
Phenotypic Ratio: 1 Chestnut : 2 Palomino : 1 Dilute
