The following points highlight the top nine strategies of adaptation in animals. The strategies are: 1. Migration 2. Hibernation 3. Aestivation 4. Camouflage 5. Mimicry 6. Echolocation 7. Warning Colouration 8. Water Scarcity 9. Cold. Strategy # 1. Migration: This is a seasonal movement of complete population of animals to a more favourable environment. It is usually a response to [...]
In this article we will discuss about the replication of viral DNA and RNA in animals. Replication of Viral DNA: Replication of DNA of viruses usually takes place in the nucleus of the host cell; poxviruses are the exceptions because their genome replicates in the cytoplasm of the host cell. Messenger RNA (mRNA) of all animal DNA viruses is transcribed [...]
In this article we will discuss about the consequences of viral infections in animal cells. 1. In lytic infection, the final result is the destruction of host animal cell and the release of progeny viruses. 2. In persistent infection, the release of virus particles, which takes place by a kind of budding process, may be slow and the host animal [...]