Find the most parsimonious tree

This is a question from Campbell Biology. I demonstrate the procedure for mapping genetic changes onto competing phylogenetic hypotheses by hand.
For Intro Bio (051) at University of the Pacific www.pacific.edu

[@rohankeegshibe6131]

Thanks to you, I was able to do these types of problems on my exam and was saved from panicking. Thank you!

[@doodoobearlove]

Thanks for patiently slowly taking us go thru this step by step, it's been driving me nuts for doing this problem, now after watching your vdo is much clear now! :"D Thank you Dr Ajna!

[@mandamania6114]

would the first tree be the most parsimonious?

[@litsadimitropoulos5473]

this helped so much! thank you.

[@Jess-no9sf]

Thank you, great video! 💕

[@jamesn.5614]

why dont you have an outgroup? instead of having to decide which is the ancestral trait.
also, very informative. thank you

[@ariverapacific]

There *should* be an outgroup! This is just a problem from Campbell textbook that my students struggled with the first time around

[@umarhasnain7369]

@@ariverapacific Can I use the maximum parsimony table to create unrooted phylogenetic tree or can I get both the rooted and unrooted ones

[@mannyadisa]

first tree

[@Jason-o5s]

Cheer~~~unwilling to spend money or use resources---' stingy or frugal.😊

[@gentianp7383]

so u not gonna tell which is most parsimonious?

[@amylopez89]

supposedly, the tree that has less base change events (tick marks) is the parsimonious

[@gentianp7383]

@@amylopez89 appreciate it

[@Kap807]

😑

[@paulstephen5416]

It seems that God changes it for you, or, maybe, a "Jesus, for others," circumstance, possibly like a Virgilian pathway, posssibly (e.g. A personal integral ecology within an intergenerational economy of salvation?). I'm adding this thought to this discussion because I do not believe that God evolves.
How about this: ua-cam.com/video/4o8mGHN9t10/v-deo.htmlfeature=shared