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BLOOD Test

Enter the letter for the matching ANSWER
incorrect
1.
In determining the phenotype for the ABO blood system: a)O is dominant over A b)B is dominant over A c)O is recessive d)all of the above
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2.
Which of the following are likely to increase in quantities when the body is under attack from bacteria? a)erythrocytes b)leukocytes c)thrombocytes
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3.
The greatest medical problem with the Rh blood group is: a)transfusion incompatibility b)chronic anemia for Rh negative individuals c)chronic anemia for Rh positive individuals d)none of the above
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4.
If one of your parents is blood type A and the other is type B, which of the following blood types would you likely be? a)A b)B c)O d)AB e)any of the above
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5.
When blood clumps or forms visible islands in the still liquid plasma, it is called: a)clotting b)agglutination c)none of the above
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6.
Which of the ff. statements is true of antigen-antibody interactions? a)Used only to identify blood types b)Used to identify & reject micro-organisms from our body c)They are the way our blood clots when we are bleeding from open wound
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7.
Most of the volume of normal human blood is composed of: a)red cells b)hemoglobin c)plasma d)white cells
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8.
Erythrocyte is another name for a)red cell b)white cell c)platelet
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9.
Which of the ff: are true of mother-fetus Rh incompatibility problems? a)Preventable by injecting Rho-GAM into the mom's blood system b)Less likely to occur during the 1st preg. compared to later preg c)Med. Tx can be nearly 100% effective
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10.
Which of the following statements is true of the Rh blood system? a)It was the first blood type system to be discovered b)It is more complex genetically than the ABO system c)There are 45 Rh blood types d)b and c
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11.
If Dad is Rh + and Mom is Rh - , what are the chances that there will be a mother-fetus incompatibility problem? Assume, they had a child & no medical treatment done to prevent this prob. a)100% b)at least 50% c)less than 50% d)0 %
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12.
The relatively clear liquid medium which carries the other cells of blood is called: a)lipid b)antibody c)plasma
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13.
Which of the ff:is true? a)Spec. ABO types are known to be linked with inc. or dec. suscep. to part. dses b)Antibodies to alien antigens, may be present in one's body b4 1st contact w/ diff. type c)Our bodies can develop longterm immunity to alien type
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14.
In the ABO blood system, you normally can be type: a)A b)B c)ABO d)A, B, AB, or O
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15.
Which of the following would be least likely to be accepted as legal proof of paternity? a)ABO blood type evidence b)HLA type evidence c)DNA sequence evidence d)all are equally likely to be accepted
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16.
An individual's ABO blood type is normally determined by: a) Genetic inheritance and environmental influences during life b) Environmental influences alone c) The inheritance of 1 of 3 possible alleles (A, B, or O) from each parent
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17.
Which of the ff: is true of Rh +? a)They are either homozygous dominant (DD) or heterozygous (Dd) for this trait b)They are all homozygous dominant (DD) c)They are all homozygous recessive (dd) d)Their homozygous recessive(dd)or heterozygous
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18.
Who is at greatest risk for Rh mother-fetus incompatibility problems? a)Europeans b)Africans c)Native Americans d)all are equally at risk
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19.
Which of the ff:is true regarding the ABO blood system? a)Type A, would not produce the anti-A antibody b)Type AB, produces both anti A & B antibodies c)The only ABO type blood that normally does not have either AorB antigens is AB
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20.
Which of the following blood components provide the major defense for our bodies against invading bacteria and viruses? a)red cells b)white cells c)platelet
A.
A,B & C --> Look at the other answers to see explanations.
B.
A,B,C --> Look at the other answers to see further explanations.
C.
A --> Europeans have the highest frequency of Rh negative people (40%), which puts them at the highest risk for this problem. About 13% of newborn Europeans are at risk, but we can now prevent the life threatening complications in most cases.
D.
C --> The liquid component of blood that we call plasma is the most abundant substance in blood. However, red cells are a close second.
E.
C --> The rules of dominance for the ABO system are that A and B are both dominant over O (i.e., O is recessive) and A and B are codominant.
F.
C --> Most of blood`s volume is made up of plasma. As the heart pumps blood to cells throughout the body, the plasma brings them nourishment and removes the waste products of metabolism. It also transports the red and white cells as well as the platelet
G.
D --> You can be type A, B, AB, or O but not ABO.
H.
B --> There are numerous types of white cells, many of which function to seek out and destroy alien microbes in our bodies. Some other types of white cells have the function of getting rid of old unneeded blood cells.
I.
E --> Since you could inherit A or O alleles from one parent and B or O alleles from the other, you could be any of the 4 ABO types. Look at the other answers to see how this could be true.
J.
B --> If the father is homozygous dominant (DD) the chances of the fetus being Rh positive and an incompatibility prob. occurring will be 100%. If the father is heterozygous (Dd), the chances are 50%. There will be no prob. if fetus is Rh negative.
K.
B --> In response to such an attack, the leukocytes, or white cells, normally appear at the site of infections in increasing numbers. They attack the invading bacteria and ultimately get rid of them if they are successful.
L.
B --> Erythrocyte literally means red cell in Greek.
M.
B --> Agglutination is the result of red cells being stuck together by antibodies attaching on to antigens on the alien red cells. Within the body, this recognition-rejection process results in the bursting of alien red cells rather than agglutination.
N.
A --> The Rh blood factor is a dominant trait. Therefore, both DD and Dd people have the Rh antigen on the surface of their red cells which makes them Rh positive.
O.
C --> In most cases these alleles are totally responsible for determining blood type phenotypes. The inheritance usually follows simple Mendelian patterns. However, there are rare exceptions such as the Bombay Phenotype described in the tutorial.
P.
D --> The most life threatening problem is the result of an Rh blood type incompatibility between a mother and her developing fetus.
Q.
A --> Because of the Bombay Phenotype and other possible exceptions, the ABO blood type system is not conclusive in determining whether or not someone could be a parent of a particular child. The other two kinds of evidence are much more reliable.
R.
B --> Microorganisms carry foreign antigens on their surfaces which stimulate the production of white cell antibodies that attack the antigens as a way of getting rid of the invading parasites and subsequently develop an immunity to future attacks.
S.
B --> The Rh system apparently is much more complex genetically since it involves 45 different antigens on the surface of red cells that are controlled by 2 closely linked genes on chromosome 1. In most cases, the ABO system is controlled by only 2 antig
T.
A --> If they produced anti-A antibodies, it would destroy their own blood. However, they do normally produce anti-B antibodies since B type blood would be alien to them.

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