Multiple choice question

case study case study case study case study case study case study case study case study case study case study case study

What is thought to have caused the mass extinction at the end of the cretaceous period?

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger