Indicate whether each of the following statements (a-e) is TRUE or FALSE. If you think a statement...
Indicate whether each of the following statements (a-e) is TRUE or FALSE. If you think a statement is FALSE, explain why.
a. TRUE / FALSE Graft rejection is mediated by pre-existing host T cell effectors and antibodies specific for antigens on the grafted tissue.
b. TRUE / FALSE Allogeneic grafts between individuals with identical HLA genes will be accepted.
c. TRUE / FALSE Your parents are generally going to be your best source of tissues if you need a transplant.
d. TRUE / FALSE Graft rejection only occurs when alloantigens from the grafted tissue are picked-up by recipient APCs and presented to recipient T cells.
e. TRUE / FALSE In Graft Versus Host Disease (GVHD) innate cells from the grafted tissue recognize host alloantigens and begin attacking host tissues.
Homework Answers
Ansa) false
Explanation:
Graft rejection is mediated by host t cells effectors and specific antibodies that are produced or released in response to specific antigen on the grafted tissue.
Ansb)true
Explanation: Allogeneic grafts with matching HLA gene and blood group are accepted for tissue grafting.
Ans-C)False
Explaination: successful graft or preference order of transplants:self> identical twins> siblings>parents>unrelated donor.
Ans d)false
Explanation:Graft rejection can occurs either when alloantigens from the grafted tissue are recognised directly by recipient T cells or indirectly when picked-up by recipient APCs and presented to recipient T cells.
Ans e)
True
Explanation:in GVHD the innate cell that is white blood cell from the grafted tissue recognize the host alloantigens and begin attacking host tissues.
Add Answer to:
Indicate whether each of the following statements (a-e) is TRUE
or FALSE. If you think a statement...
True (a) -False (b) 43. An attribute of adaptive immunity is that it is a specific...
True (a) -False (b) 43. An attribute of adaptive immunity is that it is a specific response toward a pathogen rather than generalized. 44. Self-tolerance is important, otherwise our immune systems would destroy us. 45. The MHCs are capable of presenting intracellular and extracellular antigens. 46. Super antigens are not processed or presented by T helper cells. th hi C 47. B cells directly produce antibodies. 48. Graft vs. host disease is a form of an autoimmune type IV hypersensitivity....
REVIEW Vocabulary Review True or False Decide whether each statement is true or false. In the...
REVIEW Vocabulary Review True or False Decide whether each statement is true or false. In the space at the left, write T for true or F for false. On the lines provided, rewrite the false staterments to make them true 1. Phlebotomy is the insertion of a needle or cannula into a vein for the purpose of withdrawing blood. 2. The study of blood is known as morphology. 3. Red blood cells, or microphils, re one component of blood. 4....
1. Indicate whether the following statements are true or false. If a statement is false, briefly...
1. Indicate whether the following statements are true or false. If a statement is false, briefly explain why. a. Muscle contraction occurs when cytosolic calcium levels rise due to the opening of calcium channels in the muscle cell membrane. b. The transverse tubules in muscle cells are an extension of plasma membrane, with which they are continuous.
8. Indicate whether each of the following statements is true or false. If a statement is...
8. Indicate whether each of the following statements is true or false. If a statement is false, explain why a) Two structural isomers may be chiral. : True b) A compound must be chiral in order to have an enantiomer. True c) A chiral compound with an asymmetric carbon atom designated always has a positive optical rotation. False (R) as d) Mirror-image molecules are always enantiomers. False chiral. False e) All compounds with asymmetric carbon atoms are f)The relative configuration...
9) Indicate whether each of the following statements is true or false. If the statement is...
9) Indicate whether each of the following statements is true or false. If the statement is false, rewrite the underlined portion to make it true. (2 points each) a) A change in primary structure always results in a change in tertiary structure. b) The largest force governing protein structure is the hydrophobic effect. c) Protein folding begins with the formation of tertiary structure. d) A heterodimer exhibits quaternary structure; a homodimer does not.
Indicate whether each of the following statements is true or false. Statement True False Two countries can...
Indicate whether each of the following statements is true or false. Statement True False Two countries can gain from specialization and trade as long as they have different opportunity costs in the production of some goods. The gains from specialization and trade are based on absolute advantage. If a certain trade is good for one country, it must be good for the other country. Two individuals can benefit from trade even if neither has a comparative advantage in some activity. Workers in importing industries are...
I. True or False, 25 points (5 each), Read the following statements and indicate whether the statement is true or false. For extra credit (5 points each) explain how the false statements are not...
I. True or False, 25 points (5 each), Read the following statements and indicate whether the statement is true or false. For extra credit (5 points each) explain how the false statements are not true. 3. DNA polymerase I performs proofreading by requiring a higher concentration of the next dNTP following a mismatch, allowing time for unwinding of the nascent duplex and 3 5' exonuclease digestion. 4. The DNA duplex of the genome is flexible enough to allow many values...
Indicate whether the following statement is true or false and then explain why you think this...
Indicate whether the following statement is true or false and then explain why you think this is. Include in your explanation any pertinent institutional details, empirical studies and/or economic reasoning (including appropriate graphs and equations) Universal health coverage cannot exist when asymmetric information is present.
Indicate whether each of the following statements is true (T) or false (F). e. An advantage...
Indicate whether each of the following statements is true (T) or false (F). e. An advantage of the corporate form of business is double taxation on the corporation’s earnings. i. In accounting, the word “net” is often used when describing the difference between two different amounts. j. Dividends are considered to be an expense of doing business. k. Corporations engage in three primary types of business activities – financing, investing, and operating. p. GAAP is primarily established by the Internal...
Directions: Read each of the following statements and indicate whether each is True (T) or False...
Directions: Read each of the following statements and indicate whether each is True (T) or False (F). --->>If the answer is false, change the statement to make it true. You must do this step to earn full credit for this assignment. A. People in happy marriages are less likely to feel less physically and emotionally stressed. B. The United States has the highest divorce rate in the world. C. Women show better emotional adjustment after a divorce than men do....
True (a) -False (b) 43. An attribute of adaptive immunity is that it is a specific response toward a pathogen rather than generalized. 44. Self-tolerance is important, otherwise our immune systems would destroy us. 45. The MHCs are capable of presenting intracellular and extracellular antigens. 46. Super antigens are not processed or presented by T helper cells. th hi C 47. B cells directly produce antibodies. 48. Graft vs. host disease is a form of an autoimmune type IV hypersensitivity....
REVIEW Vocabulary Review True or False Decide whether each statement is true or false. In the space at the left, write T for true or F for false. On the lines provided, rewrite the false staterments to make them true 1. Phlebotomy is the insertion of a needle or cannula into a vein for the purpose of withdrawing blood. 2. The study of blood is known as morphology. 3. Red blood cells, or microphils, re one component of blood. 4....
8. Indicate whether each of the following statements is true or false. If a statement is false, explain why a) Two structural isomers may be chiral. : True b) A compound must be chiral in order to have an enantiomer. True c) A chiral compound with an asymmetric carbon atom designated always has a positive optical rotation. False (R) as d) Mirror-image molecules are always enantiomers. False chiral. False e) All compounds with asymmetric carbon atoms are f)The relative configuration...
9) Indicate whether each of the following statements is true or false. If the statement is false, rewrite the underlined portion to make it true. (2 points each) a) A change in primary structure always results in a change in tertiary structure. b) The largest force governing protein structure is the hydrophobic effect. c) Protein folding begins with the formation of tertiary structure. d) A heterodimer exhibits quaternary structure; a homodimer does not.
Indicate whether each of the following statements is true or false. Statement True False Two countries can gain from specialization and trade as long as they have different opportunity costs in the production of some goods. The gains from specialization and trade are based on absolute advantage. If a certain trade is good for one country, it must be good for the other country. Two individuals can benefit from trade even if neither has a comparative advantage in some activity. Workers in importing industries are...
I. True or False, 25 points (5 each), Read the following statements and indicate whether the statement is true or false. For extra credit (5 points each) explain how the false statements are not true. 3. DNA polymerase I performs proofreading by requiring a higher concentration of the next dNTP following a mismatch, allowing time for unwinding of the nascent duplex and 3 5' exonuclease digestion. 4. The DNA duplex of the genome is flexible enough to allow many values...
Most questions answered within 3 hours.
-
1. A boy stands on one end of a boat, and then walks to the
other...
asked 5 minutes ago -
Casey is on trial under criminal allegations that she engaged in
fraudulent behavior at the company...
asked 10 minutes ago -
Surplus Styles is a manufacturer of hair care products,
including shampoos, conditioners, and hair gels. The...
asked 9 minutes ago -
Using an income-expenditure diagram, use the infinite line and
double-drop line tools to show the economy...
asked 17 minutes ago -
Which expression computes a pseudorandom integer between -10 and
10 using rand()
from cstdlib?
A. (rand(...
asked 24 minutes ago -
Roybus, Inc., a manufacturer of flash memory, just reported that
its main production facility in Taiwan...
asked 32 minutes ago -
Two capacitors connected in parallel produce an equivalent
capacitance of 45.0 μF but when connected in...
asked 41 minutes ago -
The differences between the two sets of dependent data are -1,
2,-,2, 2. Round to the...
asked 58 minutes ago -
A χ2-curve, looking at the relationship between age and hours
spent working at an office per...
asked 1 hour ago -
The pH of a sample of water from a river is 5.0. A
sample of effluent from...
asked 2 hours ago -
At the beginning of the period, the Fabricating Department
budgeted direct labor of $136,500 and equipment...
asked 2 hours ago -
Please answer all
____ 28. Rent control is usually
justified on the grounds that it protects...
asked 2 hours ago