Answer:
The correct answer is option D.
Explanation:
In the presence of SDS single band appeared, while in the absence of SDS two bands appeared. SDS or sodium dodecyl sulfate refers to an anionic detergent, which combines with amino acid side chains providing the protein a net negative charge. It dissociates the non-covalent bonds.
In SDS-PAGE, the separation of proteins takes place on the basis of their molecular weight. Options A and B are incorrect as only in the presence of SDS, the separation of protein subunits takes place. Option C is also incorrect as a protein containing distinct molecular weight cannot show single band.
Option D is correct as the presence of SDS supplements a bunch of negative charges to the protein, thus, charge is not the factor. Therefore, the proteins are distinguished on the basis of the molecular weight. Thus, identical molecular weight demonstrates a single band. In the non-presence of SDS, charge performs a function along with the molecular weight, therefore, two bands appear.
He discovered the theory that cells are created from the division of cells. He discovered many things related to cellular theory, pathology, and social medicine. He also discovered leukemia.
The results of Harlow's experiment were
overwhelming with an average infant monkey spending
17-18 hours per day on the
cloth mother and
less than an hour per day on the wire mother.
Harlow Harlow established the
nature of affection by experimenting on infant monkeys responses to compare the
influence of nursing from the influence of contact comfort. To study this, he compared
a wire mother who provided food, and a cloth mother who did not provide food.
The infant monkeys preferred contact comfort and spent more time with the cloth
mother than the wire mother.
Answer:
Plays a big role in sugar metabolism
also sucrose is the major product of photosynthesis in not reducing sugar and with bounded reactivity and it also stores molecules in plant....
I hope this helped you
