Answer:
They use host cell machinery to produce new copies of their genome.
Explanation:
DNA viruses, which are similar to cells, directly employ cellular machinery to perform their process of replication, transcription of their genes, and DNA repair, that is, they use a host cell to make new copies of their genome. Because of this, some viruses have a large genome, such as herpesviruses, which make their own genes and become somewhat more independent of cell metabolism. DNA molecules are found in two forms: linear and circular. Viruses of the polyomaviridae family have small genomes and circular DNA, while herpesviruses have linear dsDNA genomes. Viruses that have single strand genomes do not allow DNA repair.
Answer:
Schleiden had even supposed the nucleus to be a constituent part of the wall, sometimes lying enclosed between two layers of its substance, and Schwann quoted this view with seeming approval. Schwann believed, however, that in the mature cell the nucleus ceased to be functional and disappeared.
A volcanic winter is a reduction in global temperatures caused by volcanic ash and droplets of sulfuric acid and water obscuring the Sun and raising Earth's albedo (increasing the reflection of solar radiation) after a large, particularly explosive volcanic eruption.
B. The amount of waste would build up and the toxins produced would harm the animals and humans
<span>The family consumed botulism toxin in the canned green beans.</span>
