#Question id: 1548
#SCPH28 | Zoology
B-cell survival in the follicle is dependent on?
#Question id: 1564
#SCPH28 | Zoology
When antibodies bind antigens, the clumping of antigens results from ________.
#Question id: 3687
#SCPH05 I Biotechnology
As the two strands of the double helix are separated, the positive supercoiling interferes with the further unwinding of DNA. Which of the following enzyme makes a break in a strand of DNA to release the supercoiling and facilitate the replication to occur?
#Question id: 19198
#SCPH06 I Botany
#Question id: 11419
#SCPH06 I Botany
There are more species in tropical areas than in places more distant from the equator. This is probably a result of
a) more predators and parasites
b) more dispersed annual solar radiation compared to the poles
c) more frequent ecological disturbances over a longer time span
d) a longer time frame without disturbances for evolution and speciation