Need help on final, 2 short slides. There’s a slide before each to explain how to do it.

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata

What is the purpose of a punett square? a: finding the number of offspring people can haveb: predicting the outcome of genetic crosses c: finding how many genes a person has d: predicting the outcome of a coin toss (i think it's b or c but i'm not sure)

At what point on a roller coaster is the gravitational potential energy (gpe) the lowest? question 7 options: at the top of the highest drop at the lowest point of the roller coaster while on the decline while on the incline