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answers.yahoo.com/question/index?qid=20080202220146AAGuzsa

This is usually used in a sense of ancestral vs. derived traits. An ancestral trait or primitive one is a trait that was retained by a species from its ancestor. A derived trait is one that has evolved. Both of these terms must be used relative to a classification group. E.G.

www.answers.com/Q/What_is_the_difference_between_derived_and_ancestral_traits

What is the difference between derived and ancestral traits? Derived traits are traits that appeared in the most recent common ancestor of the group and was passed on to it's decedents.

biology-forums.com/index.php?topic=46443.0

A derived trait is a trait that the current organism has, but the previous one did not have. An ancestral trait is a trait that you, and your ancestors had. A vestigial structure is a structure that had some sort of use in your ancestor, but none in your current body.

prezi.com/motvsx_faiwn/the-difference-between-ancestral-traits-and-derived-traits

The Difference Between Ancestral Traits and Derived Traits Tomato Son Derived Ancestral Per. 6 Deadly Nightshade Ancestral Ancestral Ancestral Derived similarities Death Life & Husky Ancestral traits are what the modern and ancestors had. A derived trait is a trait that the

wikidiff.com/ancestral/derived

As adjectives the difference between ancestral and derived is that ancestral is of, pertaining to, derived from, or possessed by, an ancestor or ancestors; as, an ancestral estate while derived is (systematics) of, or pertaining to, conditions unique to the descendant species of a clade, and not found in earlier ancestral species. As a verb derived is (derive).

quizlet.com/26269028/chapter-23-flash-cards

The reconstruction and study of evolutionary relationships. Phylogeny. ... Describe the difference between ancestral and derived similarities? Derived: distinguish similarity among species that is inherited from the most recent common ancestor of an entire group Ancestral: similarity that arose prior to the common ancestor of the group. ...

biology.stackexchange.com/questions/65906/classification-and-differences...

While it is true that homoplastic trait state are necessarily derived when shown, homologous trait state can be shown as derived from a yet more ancestral trait state. Analogy vs homoplasy. Many think of an analogy as a synonym of homoplasy. However, have a look at @GerardoFurtado's answer for the subtle difference between the two.

forums.familytreedna.com/.../13753-ancestral-versus-derived

Ancestral = Negative = Non-mutated Derived = Positive = Mutated So if you're tested for L21 and the result is negative (L21-), that means your Y-DNA has the original non-mutated (ancestral) value at the position on the Y chromosome where L21 is found. In other words, you are NOT within the L21 subclade.

faculty.virginia.edu/evolutionlabs/Phylogenetics_Page.html

1) Each species has a mix of ancestral (x) and derived (x') characters. 2) Each monophyletic group (note that a single species is a group of one) is defined only by its derived characters. That is, members of different groups often share ancestral characters.

pediaa.com/what-is-the-difference-between-synapomorphy-and-symplesiomorphy

The main difference between synapomorphy and symplesiomorphy is that in synapomorphy, two or more taxa share a character with their recent common ancestor while, in symplesiomorphy, the character shared by the two or more taxa occurs in their earliest common ancestor.Furthermore, synapomorphy describes a derived character while symplesiomorphy describes an ancestral character.