1. What is a stem cell line? A. Stem Cells lined up in a row. B....
1. What is a stem cell line?
A. Stem Cells lined up in a row.
B. Stem Cells in the lineage.
C. A population of Stem Cells grown by scientists.
D. A Stem Cell broken down, with it's contents placed in a line.
2. What is an Adult Stem Cell?
A. A cell extracted from mature tissue.
B. A cell extracted only from children.
C. A cell extracted only from adults.
D. Both A and C.
E. None of the above.
Homework Answers
1-C
2-D
Note - the stem cell grown in vitro and propogated indefinetly to form invitro line scientist use invitro method to form stem cell line
The adult stem cell are those which are extracted out of adultor mature tissue .
7. Which of the following are potential barriers to stem cell therapy? a) Injection of cells...
7. Which of the following are potential barriers to stem cell therapy? a) Injection of cells may cause either inflammation or be rejected by recipient. b) For iPSC, retroviral insertion of transgenes for reprogramming can cause deleterious mutation. c) Not all stem cells in the population may differentiate into the appropriate tissue and due to the self renewal property, could lead to cancer d) There are societal ethical concerns over the source of embryonic stem cells.
10-14 10-14 Q10. Scientists are divided over value of embryonic stem cells (ESC) and adult stem...
10-14
10-14
Q10. Scientists are divided over value of embryonic stem cells (ESC) and adult stem cells (ASC). Some of the specific scientific concerns include: A. Lack of directed control of ESCs differentiation, potentially leading to uncontrollable teratomas in murine models B. ASCs plasticity and ability to differentiate into other tissues and cells C. Accessibility of ESCs and ASCs cell lines D. ASC transplantation and tissue rejection E. All of the above Q11. Cloning does NOT involve which of the...
1. Induced pluripotent stem (iPS) cells ______________________. a. Are created by the expression of key transcription...
1. Induced pluripotent stem (iPS) cells ______________________. a. Are created by the expression of key transcription regulators in cells derived from adult tissues so that these cells can differentiate into a variety of cell types. b. Require a supply of donor egg cells, such as embryonic stem cells. c. Can differentiate into a greater variety of adult tissues than embryonic stem cells. d. Are created by nuclear transplantation. 2. The different characteristics of different cell types in a multicellular organism...
24. Which of the following mechanisms produces the most cells for tissue growth from stem cells?...
24. Which of the following mechanisms produces the most cells for tissue growth from stem cells? a. The division of the stem cells themselves. b. The division of fully differentiated cells. C. The division of transit amplifying cells. d. The division of stromal/mesenchymal cells. 25. Which of the following would most likely promote cancer if it had a hyperactive mutation? a. E-Cadherin b. Cyclin D c. p27 d. Weet kinase 26. Snakes and lizards each have vertebrae and ribs. Which...
CELLULAR REPRODUCTION (Chapter 9) 1. Distinguish between: a. parent cell and daughter cells b. stem cells...
CELLULAR REPRODUCTION (Chapter 9) 1. Distinguish between: a. parent cell and daughter cells b. stem cells and differentiated cells c. sexual and asexual reproduction d. prokaryotic (binary) fission and eukaryotic mitotic cell division
1. In paracrine signaling, the signaling molecules affects only: Target cells close to the cell from...
1. In paracrine signaling, the signaling molecules affects only: Target cells close to the cell from which it was secreted a. b. Target cells distant from its site of synthesis in cells of an endocrine organ Both a. and b. с. d. None of these 2. Below are listed the events that occur in cell to cell communication. Signal transduction occurs 1. 2. Plasma membrane receptor binds with a ligand A cellular response is effected 3. 4. Ligand is released...
Name: 43. Antigens can be found on... (a) flagella (b) cell walls (c) human cells (d)...
Name: 43. Antigens can be found on... (a) flagella (b) cell walls (c) human cells (d) all of the above 40. What is the site where stem cells develop and mature into T lymphocytes in humans? (a) spice (b) thymus (c) blood (d) bone marrow 47. Antigen presentation with MHC I molecules sensitizes which type of T cell? (a) cytotoxic T cells (b) helper T cells (c) plasma cells (d) all of the above 48. How does the Tc cell...
1. Mature B cells require particular receptors to be engaged by ligand to stimulate these cells...
1. Mature B cells require particular receptors to be engaged by ligand to stimulate these cells to become antibody-secreting cells. Fill-in the table below with the receptor(s) on naïve B cells that transmit each signal and the corresponding ligand(s) that engage that receptor. (6 pts) Receptor(s) on B cell Ligand(s) Location in body where receptor engagement occurs Signal 1 Signal 2 b. Briefly describe what happens to mature B cells that receive Signal 1, but not Signal 2? (2 pts)...
Is option 1 true or false? Transfected B cells will not become immortalized. It is immortalized...
Is option 1 true or false?
Transfected B cells will not become immortalized. It is
immortalized when the B cell contain EBV episomes along with 9
virus encoded protein--> false?---> answer C
The Dr. is altering a virus encoding protein and for this to
happen i'm assuming he would do this in vitro so they will become
immortalized. Earlier in the problem it states "B lymphocytes inf.
with EBV & grown in vitro are immortalized & termed LCL
which contain...
45. Antigens can be found on... (a) flagella (b ell walls (c) human cells (@a 46....
45. Antigens can be found on... (a) flagella (b ell walls (c) human cells (@a 46. What is the site where stem cells develop and mature into T lymphocytes in humans (b) thymus (c) blood (d) bone marrow b) cell walls (c) human cells (d) all of the above develop and mature into T lymphocytes in humans? (a) spleen 41. Antigen presentation with MHC I molecules sensities which type of T cell? (a) cytotox C (b) helper T cells (c)...
7. Which of the following are potential barriers to stem cell therapy? a) Injection of cells may cause either inflammation or be rejected by recipient. b) For iPSC, retroviral insertion of transgenes for reprogramming can cause deleterious mutation. c) Not all stem cells in the population may differentiate into the appropriate tissue and due to the self renewal property, could lead to cancer d) There are societal ethical concerns over the source of embryonic stem cells.
10-14
10-14
Q10. Scientists are divided over value of embryonic stem cells (ESC) and adult stem cells (ASC). Some of the specific scientific concerns include: A. Lack of directed control of ESCs differentiation, potentially leading to uncontrollable teratomas in murine models B. ASCs plasticity and ability to differentiate into other tissues and cells C. Accessibility of ESCs and ASCs cell lines D. ASC transplantation and tissue rejection E. All of the above Q11. Cloning does NOT involve which of the...
24. Which of the following mechanisms produces the most cells for tissue growth from stem cells? a. The division of the stem cells themselves. b. The division of fully differentiated cells. C. The division of transit amplifying cells. d. The division of stromal/mesenchymal cells. 25. Which of the following would most likely promote cancer if it had a hyperactive mutation? a. E-Cadherin b. Cyclin D c. p27 d. Weet kinase 26. Snakes and lizards each have vertebrae and ribs. Which...
CELLULAR REPRODUCTION (Chapter 9) 1. Distinguish between: a. parent cell and daughter cells b. stem cells and differentiated cells c. sexual and asexual reproduction d. prokaryotic (binary) fission and eukaryotic mitotic cell division
1. In paracrine signaling, the signaling molecules affects only: Target cells close to the cell from which it was secreted a. b. Target cells distant from its site of synthesis in cells of an endocrine organ Both a. and b. с. d. None of these 2. Below are listed the events that occur in cell to cell communication. Signal transduction occurs 1. 2. Plasma membrane receptor binds with a ligand A cellular response is effected 3. 4. Ligand is released...
Name: 43. Antigens can be found on... (a) flagella (b) cell walls (c) human cells (d) all of the above 40. What is the site where stem cells develop and mature into T lymphocytes in humans? (a) spice (b) thymus (c) blood (d) bone marrow 47. Antigen presentation with MHC I molecules sensitizes which type of T cell? (a) cytotoxic T cells (b) helper T cells (c) plasma cells (d) all of the above 48. How does the Tc cell...
Is option 1 true or false?
Transfected B cells will not become immortalized. It is
immortalized when the B cell contain EBV episomes along with 9
virus encoded protein--> false?---> answer C
The Dr. is altering a virus encoding protein and for this to
happen i'm assuming he would do this in vitro so they will become
immortalized. Earlier in the problem it states "B lymphocytes inf.
with EBV & grown in vitro are immortalized & termed LCL
which contain...
45. Antigens can be found on... (a) flagella (b ell walls (c) human cells (@a 46. What is the site where stem cells develop and mature into T lymphocytes in humans (b) thymus (c) blood (d) bone marrow b) cell walls (c) human cells (d) all of the above develop and mature into T lymphocytes in humans? (a) spleen 41. Antigen presentation with MHC I molecules sensities which type of T cell? (a) cytotox C (b) helper T cells (c)...
Most questions answered within 3 hours.
-
A 8.15- g bullet from a 9-mm pistol has a velocity of 366.0 m/s.
It strikes...
asked 1 hour ago -
The outstanding bonds of Alpha Extracts have a yield to maturity
of 7.4 percent and a...
asked 1 hour ago -
The Problem: The Case of the Harmonizing Vacations
Your CEO is exploring partnering with a European...
asked 2 hours ago -
A chemical equation is balanced by adding coefficients in front
of some formulas so that the...
asked 2 hours ago -
From the literature (reference your sources): What are the
lattice parameters of calcite and aragonite? Why...
asked 3 hours ago -
Your system is rejecting the question am asking which is
preceded by a case study. It...
asked 3 hours ago -
3. On January 2, 2000, Larry creates a trust with himself as
trustee. Larry as trustee...
asked 3 hours ago -
A member of the volleyball team spikes the ball. During this
process, she changes the velocity...
asked 3 hours ago -
Are adult gamers less likely to use a gaming console (Xbox,
PlayStation, Wii, etc...) than teen...
asked 4 hours ago -
The University of
Texas recently reported that 43% of college students aged 18-24
would spend their...
asked 4 hours ago -
The length of stay at a specific emergency department in
Phoenix, Arizona, in 2009 had a...
asked 3 hours ago -
. Please give the mechanism for this type of problem. Step by
Step
The toxin that...
asked 3 hours ago