assume independent assortment and start with a plant that is dihybrid a/a; b/b, what genotypic ratio is produced from testcrossing it? anaphase

it has one origin of replication, but it proceeds in two directions - d)

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

i think the answer would be d