#Question id: 19241
#Unit 12. Applied Biology
#Question id: 1746
#Unit 4. Cell Communication and Cell Signaling
Which is the first of the following genes to be upregulated subsequent to T-cell activation?
#Question id: 5146
#Unit 5. Developmental Biology
Choose the correct match.
|
Process |
Definition |
|
a. Epithelial-mesenchymal transition |
i. The phenomenon, whereby cells intercalate to narrow the tissue and at the same time lengthen it. |
|
b. De-adhesion |
ii. The process in which cells that had formerly been part of an epithelium lose their attachments and become individual, migrating cells. |
|
c. Permissive interaction |
iii. The cadherins that couple epithelial cells together are degraded, thereby allowing the cells to become free from their neighbors. |
|
d. convergent extension |
iv. The responding tissue has already been specified and needs only an environment that allows the expression of these traits. |
#Question id: 27082
#Unit 1. Molecules and their Interaction Relevant to Biology
Choose the incorrect statement regarding β -turns
#Question id: 5665
#Unit 5. Developmental Biology
Following statements are regarding to cortical granule reaction.
A. To initiating the slow block to polyspermy the release of Ca2+ that occurs when the sperm enters the egg is critical for activating the egg’s metabolism and initiating development
B. Calcium ions release the inhibitors from maternally stored messages, allowing these mRNAs to be translated
C. Calcium ions are not release the inhibition of nuclear division, thereby allowing cleavage to occur.
D. Udx1, the enzyme responsible for the reduction of oxygen to crosslink the fertilization envelope, is also NADPH-dependent
E. The fertilization envelope is elevated from the cell membrane by glycosaminoglycans which provides support for the blastomeres during cleavage
Which of the following combinations are correct?