Answer: The answer is -
The likelihood of the offspring having straight hair is 100%.
Explanation:
According to the information provided, straight hair (H) dominates over curly hair (h), which is recessive.
The dominant trait obscures the recessive one.
The genotypes for straight hair can be either HH or Hh, while curly hair manifests only when the genotype is 'hh' (homozygous recessive).
The parents' genotypes are:
Mother: HH (homozygous dominant)
Father: Hh (heterozygous dominant).
When these are crossed, the potential offspring would be:
HH x Hh
results in HH, Hh, HH, Hh.
This indicates that all resulting offspring will possess straight hair.
<pThus, the chance of having offspring with straight hair is confirmed at 100%.