#Question id: 28444
#Unit 5. Developmental Biology
Six of precursor blast cells (P cells) persist in the larva in a row aligned antero-posteriorly on the ventral side of the larva, and posterior daughters of three of these precursor blast cells (P cells) give rise to the vulva. these precursor cells are___
#Question id: 27211
#Unit 1. Molecules and their Interaction Relevant to Biology
A biological redox reaction always involves
#Question id: 2151
#Unit 2. Cellular Organization
Which of the following statement(s) is (are) true of transmembrane proteins?
a. All contain a hydrophobic α helix.
b. Some serve as membrane attachment sites for peripheral membrane proteins.
c. Some contain more than one membrane-spanning domain.
d. All are asymmetrically oriented in the lipid bilayer.
#Question id: 1676
#Unit 4. Cell Communication and Cell Signaling
NK cells lack receptors with:
#Question id: 7101
#Unit 5. Developmental Biology
What is the mechanism by which cells fated to be mesoderm form in the marginal zone of the Xenopus embryo?