If a scientist observes an enzyme polypeptide chain arranged in spiral turns that rise upward and are held in place by hydrogen bonds he/she is looking at a tertiary structural arrangement.
Compare and contrast two mechanisms for transcriptional termination in bacteria.
(rho)p-dependent termination: requires rut (rho utilization site), rho protein binds, moves towards 3' end, DNA encodes GC rich for stem loop, RNApoly pauses, rho protein catches up and separates RNA-DNA hybrid
(rho)p-independent termination: Uracil-rich sequence causes RNApoly to pause, stabilized by NusA near open complex RNA exit, UA bonds to weak to hold, DNA-RNA hybrid dissociates AKA intrinsic termination
hope this help
Answer:
Nucleic Acids
Explanation:
Among biomolecules, nucleic acids, namely DNA and RNA, have the unique function of storing an organism's genetic code—the sequence of nucleotides that determines the amino acid sequence of proteins, which are of critical importance to life on Earth.
When Hana pours the mixture through a filter,
she will likely to collect a solution of salt in water that passes through the
filter. <span>The activity shows the split-up of solids that
are not soluble from a liquid by means of what we called filtration. It can be
used to separate solids that are not soluble from a liquid, or a precipitate
from the reaction mixture that it made. </span>
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.
