What is the structure that is the interface between the blood system of a mother and her fetus called?

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

Which of the following is required of a new drug?me

In meiosis ii during anaphase ii which structures separated homologous chromosomes or sister chromatids