2018_Stem-Cells_MCQ_QP+MS

2018 Stem Cells MCQ 2018 / H2 / ACJC PRELIM / P1 Q71Which statements regarding stem cells are true? 1Researchers can induce embryonic stem cells to differentiate into various cells and tissue types to repair damaged tissue. 2The use of embryonic stem cells for research can be an ethical challenge as the continued destruction of embryos could desensitise medical communities to the destruction of life.3One of the normal functions of blood stem cells in a living organism is the transplantation of such stem cells from normal healthy bone marrow donors to leukemia patients for treatment.4Blood stem cells can potentially differentiate into neurones under appropriate chemical signals.A1, 2 and 3B1, 2 and 4 C1 and 3D2 and 4

2018 / H2 / DHS PRELIM / P1 Q92Which of the following features of the embryonic stem cells and specialized cells shown in the diagram are TRUE? Embryonic stem cellsSpecialized cellsAEmbryonic stem cells display greater plasticity when grown in culture than when in blastocyst.The blood cells are genetically different from the embryonic stem cells but have shorter telomeres.BEmbryonic stem cells are totipotent and are capable of differentiating into many different cell types.The pancreatic cells are genetically identical to the embryonic stem cells but with a different set of genes expressed. CEmbryonic stem cells are multipotent and are capable of differentiating into limited range of cell types.The blood cells are genetically different from the embryonic stem cells because different genes are expressed. DEmbryonic stem cells are pluripotent The pancreatic cells are genetically

and are capable of differentiating into many different cells types.identical to the embryonic stem cells but have shorter telomeres.

2018 / H2 / EJC PRELIM / P1 Q223Healthy, embryonic stem cells offer great promise to the cure of many diseases because ______________________.IThey are totipotent. IIThey are more readily available than other cells.IIIThey can be easily cultured in vitro.IVThey will differentiate in the presence of appropriate molecular signals and produce cells which are normal.Which of the above statement(s) is/are true?AII, III and IVBI, III and IVCI and IVDIV only2018 / H2 / JJC PRELIM / P1 Q94Stem cells are found in many tissues that require frequent cell replacement such as the skin, the intestine or the blood. However, within their own environments, a bone marrow cell cannot be induced to produce a skin cell and a skin cell cannot be induced to produce a bone marrow cell. Which statement explains this? ADifferent stem cells have only the genes required for their particular cell line. BGenes not required for a particular cell line are methylated. CGenes not required for a particular cell line are removed using restriction enzymes. DmRNA that is not required for a particular cell line is destroyed. 2018 / H2 / MJC PRELIM / P1 Q18QUESTION 5Which of the following statement(s) is/are true regarding hematopoietic stem cells and cancer cel