#Question id: 2226
#Unit 2. Cellular Organization
What will happen to a red blood cell (RBC), which has an internal ion content of about 0.9%, if it is placed into a beaker of pure water?
#Question id: 306
#Unit 1. Molecules and their Interaction Relevant to Biology
The force responsible for dissolution of ionic compound in water is_________
#Question id: 4613
#Unit 11. Evolution and Behavior
The questions below refer to the following evolutionary tree, in which the horizontal axis represents time (present time is on the far right) and the vertical axis represents morphological change. Which species is most closely related to species W?
#Question id: 7172
#Unit 5. Developmental Biology
Transplantation of different regions of the presomitic mesoderm (PSM) to the limb field causes changes in limb size. Following statements are:
A. Transplanting PSM from the level of the presumptive forelimb to the flank (region between the forelimb and hindlimb) results in a larger forelimb bud.
B. Transplantation of PSM from the flank region to the level of the presumptive forelimb results in a smaller forelimb bud.
C. Transplanting PSM from the level of the presumptive forelimb to the flank (region between the forelimb and hindlimb) results in a smaller forelimb bud.
D. Transplantation of PSM from the flank region to the level of the presumptive forelimb results in a larger forelimb bud.
Which of the following combination are correct?
#Question id: 4078
#Unit 3. Fundamental Processes
Which of the following is (are) required for splicing to occur?
a. two transesterification reactions
b. intact, naturally occurring introns
c. formation of a lariat like structure
d. a branch-point G residue