AP Biology Review: Unit 7 Natural Selection

Review Unit 7 with @apbiopenguins

[brennhhh]

the explanation on the error bars was so helpful! thank you!!

[xojdrtu]

18:30 HAHHAHAHA I LOVE YOU SO MUCH. i really hope i do well this thursday‼️‼️ 😭😭😭

[nahs]

I’m confused for 37:30, since X and Y both have similarities in 4 different traits (not having them) wouldn’t they be the most closely related?

[alamofour]

Im kind of confused on your hardy weinberg math, to find the allele frequency of q, cant you just square root q^2, so you would do sqrt of .5, which is .707, and then subtract that from one to get allele frquency of p, or am i doing something wrong.

[dc-dxmm]

at 40:24, you mentioned how D. polylepis is the most similar of all the other species but has the greatest amount of difference between the rest, so should it be the most different of all the other species or most unrelated?

[noicepanda]

where are the powerpoints you use in the videos on the website i cant find them?

[dennisont]

Would you be able to go into more detail with why we have to know that extra formula for Hardy-Weinburg? I could not fully grasp why taking the sqaure root of p^2, etc would not give us the right allele frequencies. I know you meant to, and the diagram was not right.

[HealthyBrainPower]

For the example of hardy weinberg I don’t understand how u knew if the 200 300 or 500 of the flowers should be p or q or pq^2, when it wasn’t indicated in the problem.