The correct answer is option
.
The
is an ion made up of two atoms nitrogen and hydrogen.
The polyatomic ions are those ions, which are formed by the binding of the two or more elements, which has a charge and act as an ion. As all others are formed by a single atom, they are not polyatomic, only
is formed by two atoms, hence, it is an polyatomic ion.
D-glycolysis, you have the right answer
Answer:
Genetic drift
Explanation:
Genetic drift is an evolutionary mechanism that in a population it changes allelic frequencies over generations just by chance. For this reason, small populations are more susceptible to be affected by genetic drift than bigger populations.
In this example, Indiana Jones visited a small village of 50 people and over generations allele A probably was lost just by chance, or by genetic drift.
Answer:
d) short amino acid chains, NAG, NAM, and some lipid proteins
Explanation:
Bacterial cell walls are made up of a rigid layer that is responsible for the resistance of the cell wall. This layer is called Peptidoglycan.
The basic structure of peptidoglycan is:
- A long chain of sugar derivatives, <u>N-acetylglucosamine (NAG) </u>and <u>N-acetylmuramic acid (NAM)</u>. These two sugars are linked together by glycosidic bonds. Although these links are strong and make up the structural backbone, they are not sufficient to give the wall rigidity.
- The amino acids (<u>L-alanine, D-alanine, D-glutamic, and Lysin</u>) play an important role as peptide bridges that cross-braced the chains, joining the N-acetylmuramic molecules (NAM) together, giving greater rigidity to the structure.
Lipid proteins embedded in the wall with structure functions can also be found in the cell wall.