Question

A diploid cell (2N = 8) has the genotype AaBbCc. The “A” and “B” loci are on Chromosome 1, and the “C” locus is on Chromosome 2. a) Sketch what the cell would look like during anaphase of mitosis, labeling all chromosomes and alleles. b) Sketch what the cell would look like during anaphase I of meiosis, labeling all chromosomes and alleles.

Answer 1

2N= 8. Hence there is found 8 chromosome in the parental cell. The centromere splits in anaphase of mitosis. That's why the chromatids are separated to each pole.

In anaphase 1 of meiosis 1, there is not found splitting of centromere. The homologous chromosome are separated to each pole. Hence the 4 chromosome are found in one pole and other homologous chromosome are separated to another pole.