Hair texture is an incomplete dominant trait. Curly hair (HH) and straight hair (H'H') make wavy hair (HH'). Cross a wavy and a straight haired parent and list the phenotypic ratio of the offspring.Phenotypic ratio is: Wavy Straight
Question
Hair texture is an incomplete dominant trait. Curly hair (HH) and straight hair (H'H') make wavy hair (HH'). Cross a wavy and a straight haired parent and list the phenotypic ratio of the offspring.Phenotypic ratio is: Wavy Straight
Solution
To solve this problem, we need to create a Punnett square. The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
The wavy haired parent has the genotype HH' and the straight haired parent has the genotype H'H'.
The Punnett square for this cross would look like this:
| H | H' | |
|---|---|---|
| H' | HH' | H'H' |
| H' | HH' | H'H' |
From the Punnett square, we can see that half of the offspring will have wavy hair (HH') and half will have straight hair (H'H').
So, the phenotypic ratio of the offspring is 1:1 (Wavy:Straight).
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