Most gene functions in animals, such as cattle, sheep, and goats, are often compared to those in humans. Gene expression is largely influenced by the type and amount of environmental stimuli. However, humans tend to perceive and respond to these stimuli differently than animals do. While humans perceive and analyze stimuli, animals lack this capability. Consequently, most genome databases reference the phenotypes of various genes in animals using the human genome as a basis. Despite the differences between species, scientists are confident in the expression of most genes across different organisms. How are we confident to refer the human gene function to animals or sometimes to plants? How can these differences be compromised?
Look at the evolution of the human lineage and you will understand a few things, because the gorilla and the chimpanzee have a nucleic sequence very close to that of the human being, hence this observation and fact.
Hence some animals have a common ancestor with human beings and therefore the same gene to occur in the generation.These reference genes here refer to the same common ancestor; distant for some animals perhaps, but for some not in relation to humans.
Frédéric Harding Kouaho, thank you for your response. My question is related to the last statement in your answer, "... but for some not in relation to humans." How could we be sure to refer human gene function to those animals that have a distant relation in the mammal phylogenetic tree?
- Badges
- Science topic
- Similar topics
- Linguistics
- Composition Studies
- Writing