D. . They have contributed the same type of allele <span>for this gene.</span>
The answer to this question would be: impaired gas exchange.
<span>Pneumocystis jiroveci attack the lungs and cause pneumonia. Pneumonia will reduce the lungs function and might cause dyspnea or even respiratory distress in severe cases. The ulcer in the feet wouldn't kill the patient but respiratory distress would.</span>
Centrioles are organelles that are found only in animal cells and they produce D) flagellum and centrosomes.
Centrosomes help organize the microtubules present in the animal cell during cell division and also regulate the cell cycle.
Furthermore, the flagellum produced by centrioles in sperm cells help the cell move towards the egg and cause fertilization.
