Answer: Telomeres, Helicases, Okazaki, DNA polymerase, Topoisomerase
Explanation:
1. Telomeres these are set of repetitive nucleotide sequence found at the end of a linear chromosomes they help preventing the DNA chromosome frrom sticking to other DNA chromosomes.
2. Helicases are proteins that uses energy (ATP) to unwind DNA strands during replication.
3. Okazaki fragments the small DNA nucleotide sequence synthesized separately on the lagging strand.
4. DNA polymerase are enzymes that catalyzes the addition of deoxyribonucleotides to DNA during replication.
5. Topoisomerase are enzymes that prevent single stranded DNA from supercoil, rumple and winding back during replication.
Answer:
A. By releasing toxins that poison your cells
B. By using your cells to make copies of themselves
Explanation:
Within the body, bacteria can divide (multiply) and kill host cells by disrupting their normal functioning. Moreover, bacteria secrete toxins that are able to destroy host cells' metabolic machinery. For instance, many bacteria synthesize exoenzymes and interferons that disrupt and destroy host cells. Bacterial toxins can be synthesized internally in order to develop sensitivity through antigenic properties.
Each human contains 46 chromosomes because each cell (humans have 2 each) has 23.
Answer:
The answer is b for apex.
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.