DNA polymerase has the responsibility of forming new copies of DNA, and RNA polymerase plays a similar role in forming new copies of RNA. In order to continue surviving and infecting, a virus needs to make copies of itself. And this replication requires access to the polymerase.Answer and Exp...
Deoxyribonucleic acid is a sensitive molecule; any changes in the chemical structure and sequence can lead to harmful effects. This is because the molecule is required to produce proteins in the cell, and these proteins drive various biochemical reactions. So changes in DNA ...
DNA is stored in the cell ‘HQ’, the nucleus, where various ‘secret agents’ called enzymes get their hands on this important document (DNA). They need the information stored in the DNA to build important machines known as proteins. Unfortunately, these agents face a difficult hurdle. The ...
If you put a molecule of pure carbon dioxide together with hydrogen and oxygen atoms, you would soon find that these two would be attracted to each other due to their orbital radii around the nucleus of the carbon dioxide molecule. The presence of oxygen would push the carbon dioxide molecule...
What is the advantage of having a nucleus? Explanation: As the DNA is present in the nucleus,there is compartmentalisation and the process becomes more efficient without the interaction of external bodies. The membrane of the nucleus protects the DNA from injuries. ...
In order for the genetic material of the virus to integrate into the hots DNA, it must be changed by an enzyme known as reverse transcriptase16: an enzyme called integrase is then activated as the virus new genetic material enters into the nucleus of the CD4 cells, then acts to integrate ...
Interestingly, "prokaryote" means "before the nucleus," and refers to a cell structure where the chromosomal DNA is not enveloped in any internal membrane but is free in the cell cytoplasm. What is another name for prokaryotic? Prokaryotes are divided into two domains, Archaea andBacteria. Thus...
Upon infection of hepatocytes, the genomic RC DNA is transported to the nucleus and converted (repaired) to an episomal cova- lently closed circular (CCC) DNA [5] that serves as the template for transcription of all viral RNAs. Unlike conventional retroviral reverse tra...
ROS produced in excessive amounts may be deleterious. However, their production is indispensable for important immunological responses against viruses and bacteria, establishing healthy cellular growth and differentiation processes and modulating the gene expression of downstream targets involved in DNA repair...
as A in the DNA is transcribed into U in mRNA, C into G, G into C and T into A. The mRNA then leaves the DNA (and in eukaryotes, the nucleus; in prokaryotes, the DNA sits in the cytoplasm in a single, small, ring-shaped chromosome) and moves through the cytoplasm until encounter...