24 Stem Cells

Question 1

blastocyst undergoes

Answer 1

gastrulation

Question 2

gastrulatioin

Answer 2

form three germ layers

Question 3

ectoderm

Answer 3

outer skin

Question 4

mesoderm

Answer 4

inner skiin

Question 5

endoderm

Answer 5

digestive tract lining

Question 6

embryonic stem cells (ESCs)

Answer 6

can be extracted from inner cell mass of blastocyst and grown

Question 7

pluripotent

Answer 7

be able to specialize to different cells

Question 8

self renewal

Answer 8

create more stem cells

Question 9

cellular potency

Answer 9

cell’s potential for differentiation

Question 10

sequence for potency

Answer 10

totipotent
pluripotent
multipotent
unipotent

Question 11

totipotent

Answer 11

fertilized egg

Question 12

pluripotent

Answer 12

blastocyst

Question 13

multipotent

Answer 13

ectoderm, mesoderm, endoderm

Question 14

unipotent

Answer 14

differentiated cells

Question 15

pluripotent differential regulation

Answer 15

transcription factors, cofactors, chromatin regulators

Question 16

What happens when Oct4 is on

Answer 16

loose chromatin

Question 17

what happens when Oct 4 is off

Answer 17

condensed chromatin, differentiated cell

Question 18

iPSCs

Answer 18

reprogrammed somatic cells to pluripotent state

Question 19

stem cell niche

Answer 19

stem cells are in protected areas of an organ

Question 20

lineage tracing

Answer 20

tracing cells to determine descendants of stem cells

Question 21

organoids

Answer 21

researchers cna use stem cells to create complex organoids in vitro