Which of the following is a plausible pathogenic scenario? Please choose the correct answer from the following choices, and then
select the submit answer button. A mutation that prevents the addition of CO2 to the terminal amino group of the β chain leads to increased affinity of hemoglobin for O2, resulting in acute hypoxia. A mutation that eliminates the activity of an enzyme involved in porphyrin synthesis leads to increased anemia. A mutation that allows normal fetal hemoglobin to continue being produced into adulthood would enhance symptoms of sickle-cell disease. All of these scenarios are plausible. Only the second and third scenarios are plausible.
The correct answer is option - only second and third scenarios are plausible.
Explanation:
A mutation that removes or eliminates the activity of the enzyme that is responsible or involved in synthesis of the porphyrin which cause pathogenic condition called anemia.
A mutation that allows that cause normal fetal hemoglobin to keep on producing into adulthood would enhances symptoms of sickle cell that is also a pathogenic condition.
Thus, the correct answer is option - only second and third scenarios are plausible.
The animal plasma membrane is a layer of phospholipids that is entwined with cholesterol and proteins. Cholesterol makes up a small part of the cell membrane's mass and it is present in every cell of the body. Cholesterol maintains the integrity of the cell membrane. It assists in the immobilization of the outer surface of the cell membrane and it reduces the permeability of the membrane to most biological molecules. Cholesterol also perform roles in cell signaling, maintaining fluidity and protecting important proteins in the membrane.
There are four major protein complexes in the thylakoid membrane: Photosystem II (PSII), Cytochrome b6f complex, Photosystem I (PSI), and ATP synthase. These four complexes work together to ultimately create the products ATP and NADPH.
