A Certain Type of Congenital Deafness in Humans Is Caused

question 16

Essay

A certain type of congenital deafness in humans is caused by a rare autosomal (not X-linked)dominant gene.
a) In a mating involving a deaf man and a deaf woman (both heterozygous),would you expect all the children to be deaf? Explain your answer.
b) In a mating involving a deaf man and a deaf woman (both heterozygous),could all the children have normal hearing? Explain your answer.
c) Another form of deafness is caused by a rare autosomal recessive gene.In a mating involving a deaf man and a deaf woman,could some of the children have normal hearing? Explain your answer.

---

Definitions:

Anxiety

A mental health disorder characterized by feelings of worry, anxiety, or fear that are strong enough to interfere with one's daily activities.

Fear

An unpleasant emotion caused by the belief that someone or something is dangerous, likely to cause pain, or a threat.

Panic Disorder

An anxiety disorder characterized by sudden and unprovoked panic attacks.

Hyperventilation

A condition of breathing at an abnormally rapid rate, leading to a decrease in the carbon dioxide levels in the blood, which can result in symptoms such as dizziness or tingling in the limbs.