A gene is (in informal use) a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
Not always. It just depends on if the traits stay the same
Your question is really vague, but when I typed it in, I found this website with people answering the same question: https://studyandanswers.com/biology/question20660094
The study of relationships and the evolutionary history of various groupings of species is known as phylogeny. The goal of phylogeny is to reconstruct the evolutionary course of all species on Earth. A phylogenetic tree also learned as a cladogram, is a schematic diagram used to show the alleged evolutionary relationships between taxa. Diagrams of phylogenetic trees are based on cladistics, or phylogenetic systematics, hypotheses.
Organization of life, according to taxonomy, divides creatures into three domains:
The Eukarya domain are the most easy because they are large enough for their morphological features to be easily seen.
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