#Question id: 5682
#Unit 5. Developmental Biology
During prevention of polyspermy in sea urchin the shift from ___1___ to __2____is the result of a small influx of Na+ into the egg through newly opened sodium channels. Sperm cannot fuse with egg cell membranes that have a ___3___ resting potential, so the shift means that no more sperm can fuse to the egg.
#Question id: 4117
#Unit 3. Fundamental Processes
The RNA recognition motif (RRM), also called the RNP motif and the RNA-binding domain (RBD), is the most common RNA-binding domain in hnRNP proteins. Choose important characteristics of RBD
a. RRM domain consists of a four-stranded b sheet flanked on one side by two a helices.
b. To interact with the negatively charged RNA phosphates, the b sheet forms a positively charged surface
c. The 45-residue KH motif is also found in the hnRNP and several other RNA-binding proteins
Which of the following statements are correct?
#Question id: 24155
#General Aptitude
#Question id: 24183
#General Aptitude
#Question id: 11297
#Unit 10. Ecological Principles
What is the difference between gross and net primary production?