#Question id: 5236
#Unit 5. Developmental Biology
Following statements regarding to signaling pathways that control the properties of germline stem cells in drosophila.
A. The signaling molecules—the TGF-β-family proteins Dpp and Gbb as well as Hedgehog (Hh)—are maintain the self -renewal property of germline stem cells by the repression of differentiation factor.
B. Both E-cadherin and Arm are important in maintaining the germline stem-cell niche and regulate the proliferation of stem cells.
C. The signaling molecules—the TGF-β-family proteins Dpp and Gbb as well as Hedgehog (Hh)—are maintain germline stem cell
niche as well as self-renewal property.
D. Both E-cadherin and Arm are important in maintaining the self -renewal property of germline stem cells by the repression of differentiation factor.
Which of the following is correct?
#Question id: 2113
#Unit 2. Cellular Organization
Why are lipids and proteins free to move laterally in membranes?
#Question id: 2191
#Unit 2. Cellular Organization
A membrane-affiliated protein is isolated by detergent extraction, and found to be amphipathic and lacking any nonprotein components. To which class of membrane proteins does it belong?
#Question id: 10736
#Unit 10. Ecological Principles
Ecotones are:
#Question id: 15171
#Unit 2. Cellular Organization