Based on the clumping that was obtained when anti-D serum was dropped into John Doe's blood, John Doe's blood type is<u> Blood type D.</u>
<h3>What is blood typing?</h3>
Blood typing refers to the process by which blood is classified into types.
The process of typing blood involves reactions in which agglutination of blood occurs when a certain type of antiserum is dropped into the blood that contains a particular antigen such that an antibody-antigen pair is obtained.
The presence of certain antigens on the surface of blood helps to classify blood into types.
For example, when anti-A serum is added to a blood sample and agglutination occurs, the blood type could be either blood type A or blood type AB as these blood samples contain the A antigen on the surface of the red blood cells.
Similarly, when anti-D serum is added to a blood sample, the blood type is a blood group D as this blood sample contains the D antigen on the surface of the red blood cells.
Learn more about blood types at: brainly.com/question/27757703
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It mutates because you are immune, but yes it mutates and gets a new trait to trick your body into letting it in.
I would say that Melissa has made the mistake of using the same uncleaned cutting board first for cutting up chicken which is notorious for forming bacteria quickly when out of the fridge and then chopping vegetables on it thus running the possibility of contaminating the vegetables with chicken bacteria. She should ensure she washes the cutting board carefully with soap and water to avoid contamination of the vegetables.
Answer: "the atmosphere" ;
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or, more specifically; the "nitrogen gas from the Earth's atmosphere";
{" N₂ gas in the Earth's atmosphere" } .
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