Diseases carried by recessive genes are inherited when ____________.
A)a child inherits two recessive genes,one from each parent
B)a child inherits two dominant genes,one from each parent
C)a child inherits a dominant gene from one parent and a recessive gene from the other parent
D)when the child doesn't inherit any genes from one parent

Question

Quizplus · Accepted Answer

Diseases carried by recessive genes are inherited only when an individual inherits two copies of the same recessive gene, one from each parent. This means that both parents must carry at least one copy of the recessive gene in order for their child to have the disease. Therefore, choice A is correct. Choices B and C are incorrect because dominant genes do not cause recessive diseases. Choice D is also incorrect as inheritance always involves genes from both parents.

Diseases Carried by Recessive Genes Are Inherited When ____________