What is the process in which amino acid chain arrange themselves as three-dimensional structures?
a. splicing
b. folding
c. linking
d. splitting

The right answer is B. folding

The translation of the genetic information is done in two stages: one translates the sequence of the bases of the gene into amino acid sequence of the protein is the primary structure; the second translates this sequence into a complex, precisely defined three-dimensional structure, the only one able to confer on the protein its biological activity.

The second stage, or "protein folding", is at present one of the central problems of biological research.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

the scientific method.