AAMC exam 8 #145

[kabtq9s]

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I have never seen a punnet square like this before 😕

Can anyone comment on this question please

 

[bambam02]

The punnett square they use is the very long and hard way of doing things.

Essentially this is how your taught to work this problem in a genetics course:

Treat the genes separately:

The heigh gene cross is: Tt x tt --> 50%tall 50% short

The color cross is: RrxRr --> 50% pink, 25% red, 25% white


Then you multiple the %'s to get the combinations...think statistics.

so for tall AND pink you would multiple tall% by pink% --> 50%*50% = 25%.


if they have an or in there (like tall or short and pink... just add)