Question

Is Huntington's disease a dominant genes, recessive gene, codominant genes, damage after conception.

Is Familial hyper cholesterolemia a dominant genes, recessive gene, codominant genes, damage after conception.

Is achondroplasia a dominant genes, recessive gene, codominant genes, damage after conception.

Is alkaptonuria a dominant genes, recessive gene, codominant genes, damage after conception.

Answer 1

Autosomal dominant genes- huntington's disease, familial hypercholesterolemia, achondroplasia

Autosomal dominant disease/ traits are the condition where only one copy of abnormal gene which is inherited from parents is sufficient to cause the disease/traits. The person showing the trait or having disease is known to inherit one copy of altered gene from one of the parent. There is 50% chances of offspring getting the disease from affected parent in each pregnancy. Offspring who donot inherit the disease will not carry or pass the disease to the future generation.

Autosomal recessive gene- alkaptonuria

Autosomal recessive disease/ traits are the condition where both the copy of abnormal gene which is inherited from parents is essential to cause the disease/traits. The person showing the trait or having disease is known to inherit both the copy of altered gene from both the parents. People with one copy of offspring is considered to be carrier.