Question

huntington’s disease is a genetic disorder that results in the breakdown of nerve cells and is expressed in dominant genotypes. which statement predicts the chance for children born of parents with genotypes hh and hh to inherit the disorder? all children will have hh genotypes and inherit the disorder. the children will have a 25% chance of inheriting the disorder. all children will have hh genotypes and will not inherit the disorder. the children will have a 50% chance of inheriting the disorder.

Explanation:

Step1: Determine Parental Gametes

Parent 1 (Hh) can produce gametes H and h. Parent 2 (hh) can only produce gamete h.

Step2: Create Punnett Square

	H	h
h	Hh	hh

Step3: Analyze Genotypes and Phenotypes

From the Punnett square, the genotypes are 50% Hh and 50% hh. Since the disorder is dominant (expressed in Hh or HH), Hh children will inherit the disorder, and hh will not. So the chance to inherit the disorder is 50% (from Hh genotype).

Answer:

The children will have a 50% chance of inheriting the disorder.