Answer:
2
Explanation:
plants do have dna in the nucleus
Parasitism
Explanation:
This relationship in which the heartworms gets nutrient from the host and in the process, the host eventually dies from infestation is known as parasitism.
- The organism that houses the heartworm is called the host
- The heartworm in itself is called the parasite.
- Parasitism is a positive - negative relationship in which one organism feeds on the other and causes harm to it in the process.
- Plasmodium falciparum is the parasite of malaria in man.
- In commensalism, one organism depends on the other without causing harm to it. Example is cattle and egret.
- Mutualism is a positive - positive relationship in which both organism derives benefits from the other. Example is lichen.
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Its is something that girl is my dream pet two
Explanation:
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.
