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Because scientists find new information all the time, and this sometimes contradicts what we thought we knew. Of course we want to be as right as we can be at any given time, so the trees are revised based on the newfound facts.

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12y ago

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Related Questions

Are cladograms true family trees?

No, because they do not identify individuals.


Rely on physical traits behaviors and molecular evidence?

both cladograms and phylogenic trees


What three types of cladogram?

The three types of cladograms are rooted cladograms, unrooted cladograms, and strict consensus cladograms. Rooted cladograms include a common ancestor at the root, unrooted cladograms lack this feature, and strict consensus cladograms display only relationships supported by all data.


How genes affect characteristics?

It is a polygenic character


Is breast cancer codominant or polygenic?

POLYGENIC!


Traits that are shaped by many genes are called what?

Traits that are produced by the interaction of several genes are called polygenic traits. Examples of polygenic traits are height and skin color.


What is trait called when it is controlled by more than one gene?

Polygenic Traits


Cladograms are constructed using what?

Derived Characters Synapomorphies


True or false height is not a polygenic trait?

false, height is a polygenic trait


Are polygenic genes dominant genes?

Polygenic genes are usually dominant genes.


What controls a polygenic trait?

two or more genes


How can one learn to read cladograms effectively?

To learn to read cladograms effectively, one can start by understanding the basic principles of cladistics, such as shared characteristics and common ancestry. Practice analyzing different cladograms and identifying the relationships between organisms. It is also helpful to study the terminology used in cladistics and seek guidance from textbooks or online resources. With consistent practice and study, one can improve their ability to interpret and understand cladograms.