Multiple Choice 1) __ An individual who is Type O blood has a) O antibodies b) B antibodies c) Both A and B antibodies d) Neither A nor B antibodies 2) __ To distinguish between human and animal blood, a __ test is used. a) Color b) Precipitin c) Serology d) Presumptive 3) __ If blood is found to have both A and B antigens it is considered type a) A b) B c) AB d) 0 4) __ When studying angles of impact, which of the following angles would be most accurate to describe a circular blood drop? a) 10 degrees b) 40 degrees c) 70 degrees d) 90 degrees 5) __ One parent is type AB and the other parent is type O A possible genotype for an offspring is a) AB b) 00 c) AO d) All of the above Blood Quiz

## Step1<br />The first question is about the antibodies present in an individual with Type O blood. Type O blood does not have A or B antigens, but it does have both A and B antibodies. This is because the immune system recognizes these antigens as foreign and produces antibodies to attack them.<br /><br />## Step2<br />The second question is about the test used to distinguish between human and animal blood. The Precipitin test is used for this purpose. It involves the reaction of an antigen with its corresponding antibody to form a visible precipitate.<br /><br />## Step3<br />The third question is about the blood type when both A and B antigens are present. When both A and B antigens are present on the surface of red blood cells, the blood type is AB.<br /><br />## Step4<br />The fourth question is about the angle of impact for a circular blood drop. A circular blood drop is formed when the angle of impact is 90 degrees. This is because the blood drop falls straight down and hits the surface at a right angle.<br /><br />## Step5<br />The fifth question is about the possible genotypes of an offspring when one parent is type AB and the other is type O. The possible genotypes are AB, AO, and OO. This is because the parent with type AB blood can pass on either A or B alleles, while the parent with type O blood can only pass on O alleles.