What is the predicted gentotype of I1 and I2 (the father and mother at the top of the chart).

A) XY and XX
B) XhY and XhX
C) XHY and XHXh
D) XHYh and XHXh

The correct option is A) XY and XX

Explanation:

As the pedigree shows, the males and female parent do not have any disease nor are they carriers for any disease. Hence, they will have a normal genotype. The slash on the members of the pedigree show that the individual is dead. But for the first two parents, neither the sign for a disease nor for carrying a disease is shown. Hence, they will be normal.

answer;

-vessels in the chest

the diagnosis of angina pectoris literally means "vessels in the chest"

explanation;

-angina pectoris is the medical term for chest pain or discomfort due to coronary heart disease.it is the chest pain due to an inadequate supply of oxygen to the heart muscle. the pain is typically severe and crushing, and it is characterized by a feeling of pressure and suffocation just behind the breastbone.

agina pectoris is caused by reduced blood flow to your heart muscle. the blood carries oxygen, which the heart muscle needs to survive. when the heart muscle isn't getting enough oxygen, it causes a condition called ischemia