Explanation:
It’s an important question because the road to a successful career in science – as with technology, engineering and mathematics, the other STEM fields – can be challenging, often requiring a Ph.D. or other postgraduate training. And once in their fields, there can be political and economic pressures with which to contend. The Bureau of Labor Statistics projects workforce shortfalls for many science fields, though the projected needs differ across the life, physical and natural sciences.
Answer:
A
Explanation:
Disulfide bridges in proteins are made of covalent bonds between two sulfurs adjacent to each other in a protein. Therefore Cysteines who's side groups have sulfurs are significant determining the position and number of S=S bonds in a protein. Because covalent bonds are the strongest bonds, they stabilize a protein making it is hard to denature. The more the S=S bonds the higher the stability of the protein. An example of proteins with S=S bonds is keratin, the protein that makes nails and curly hair.
