Source: Adapted from C

Multiple Choice

Source: Adapted from C. A. Huether et al., Maternal age specific risk rate estimates for Down syndrome among live births in whites and other races from Ohio and Metropolitan Atlanta, 1970-1989, Journal of Medical Genetics 35: 482-90 (1998) . Figure 8.20B Maternal age and incidence of Down syndrome
-In some plants such as mosses and ferns, there is a multicellular stage in the life cycle that is haploid and a different stage that is diploid. What can you conclude from this?

A) The haploid cells must undergo twice as much mitosis in order to produce a diploid stage.
B) Haploid cells must undergo mitosis to produce a multicellular haploid stage.
C) Meiosis must happen over and over to produce as many haploid cells for a multicellular haploid plant.
D) Haploid cells must undergo meiosis to form gametes.