What percentage of the light energy that is absorbed by photosynthetic algae from the sun is available as food for herbivores in the oceans?
a. 60 percent
b. 2 percent
c. 25 percent
d. 15 percent

before it leaves the nucleus of a eukaryotic cell, mrna is altered in the following ways: - a cap is added to the 5' end of the mrna molecule; - a poly a tail is added to the 3' end; - introns are removed and exons are spliced together.

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.