Question

The following questions refer to an Arabidopsis plant with no chromosome abnormalities:

(A) How many chromosomes are present in a single cell at prophase of meiosis I?

(B) How many chromatids are present in a single cell at metaphase of meiosis I?

(C) How many chromatids are present in a single cell at metaphase of meiosis II?

(D) How many centromeres are present in a mature sperm cell?