Volcanic eruptions cause magma to rise through cracks or weaknesses in the Earth's crust and when the pressure is released magma explodes causing a volcanic explosion. Hope this helps! :)
The glycocalyx is present in the human vascular and digestive system. Endothelial cells lining blood vessels have a glycocalyx to protect them from the sheer stress of blood flow, as well as to aid in cell attachment that helps the immune system and blood clotting
Polypeptide chains represent the primarylevel of protein structure. The secondarystructure of a protein results from hydrogen bonding between amino acids in the peptide chain. This leads to twisting or folding of the chain into the alpha helix and the beta pleated sheet shapes.
The question is incomplete as it does not have the options which are
A. no change since both amino acids are negatively charged
B. modest change because both amino acids carry a charge
C. modest change because both are about the same size
D. severe change because the amino acids are oppositely charged, one negative one positive
E. severe change because replacing the aspartic acid would severely alter the confirmation of the protein and the protein would probably be degraded
Answer:
Option-E
Explanation:
The helix-turn-helix is the DNA binding motif which binds with the DNA binding domain and controls the gene expression. The helix-turn-helix binds the DNA as a dimer.
If a mutation in the gene which codes for the motif changes one amino acid that is glutamic acid to the proline it will alter the conformation of the protein.
The reason for this is that proline, when is present in the peptide, does not have the hydrogen ions to donate as a result of which it does not form the helix structure and thus helix structure will not be stabilized with this and the protein will be degraded.
Thus, Option-E is correct.
Washing your hands does prevent germs so (True)
