#Question id: 7237
#Unit 5. Developmental Biology
Following
statements were made regarding vulval development in C. elegans:
A.
The formation of the anchor cell is mediated by lin-12, the C. elegans homologue of the Notch gene.
B.
The formation of the anchor cell is mediated by lin-12, the C. elegans homologue of the Delta gene.
C.
The lin-12 gene needs to
function only in that cell destined to become the uterine precursor cell.
D.
Presumptive Anchor cell also need lin-12.
E. Two cells originally synthesize both the
signal for uterine differentiation (the LAG-2 protein, homologous to Delta) and
the receptor for this molecule (the LIN-12 protein, homologous to Notch.
F.
Only one cell synthesize both the signal for uterine differentiation (the LAG-2
protein, homologous to Delta) and the receptor for this molecule (the LIN-12
protein, homologous to Notch.
Which one of the following options represents a combination of incorrect statements?
#Question id: 4990
#Unit 11. Evolution and Behavior
Fly species W, found in a certain part of the island, produces fertile offspring with species Y. Species W does not produce fertile offspring with species X or Z. If no other species can hybridize, then species W and Y
#Question id: 2472
#Unit 2. Cellular Organization
In response to a chemotactic signal, a cell forms structures to aid in locomotion. In lamellipodia, active Rac will stimulate F-actin polymerization at the leading edge via _____, whereas actin that will form stress fibers will be recruited by formin downstream of activation of this small GTPase _____.
#Question id: 10281
#Unit 6. System Physiology – Plant
Gluconeogenesis is particularly important in plants such as the castor oil plant Ricinus communis and sunflower that store carbon in which form .
#Question id: 12137
#Unit 10. Ecological Principles