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Individual 1 Individual 2 Individual 3 Individuals 2 and 3 We know that replacin

ID: 164407 • Letter: I

Question

Individual 1 Individual 2 Individual 3 Individuals 2 and 3 We know that replacing one amino acid in the 6th position changes HBA to HBS. in normal to high oxygen situations, HBA and HBS may look the same under the microscope. What would cause them to look and react differently in low oxygen environments? When the structure of a protein changes, its shape and function remain the same. When the structure of a protein changes, its shape and function change When the structure of a protein changes, its shape changes but its function remains the same. When the structure of a protein changes, its shape remains the same but its function changes. Which of the following are reasons why production of extra cells in the body can create serious health issues? Choose all that apply. Tumors can grow large and press down on blood vessels, thus reducing circulation. Cancer cells could enter the bloodstream and create a tumor at another location. Normal cells receive more oxygen and nutrients. Organs receive increased blood flow and could

Explanation / Answer

10. The answer is ‘b’

Hemoglobin is a protein that carries oxygen in Red blood cells. Normal red blood cells are disk-shaped and depressed in the middle, in HbS hemoglobin the cell shape is changed to a "sickle". Under low oxygen conditions, the sickle hemoglobin binds to itself and causes the red blood cell to change its shape and also loses oxygen carrying capacity than normal.

11. The answer is ‘b’

Cancer is an abnormal cell division in an uncontrolled way. Sudden genetic changes or heriditary genetic mutations makes one cell or few cells begin to grow and multiply too much, this may cause tumors. Cancer can spread to the other body parts through the blood stream.