C. Anaphase
Anaphase is the briefest stage of mitosis. The centromeres begin to separate, being pulled to the poles by the spindle fibers. As the centromeres seperate the chromatids split.
C. But be aware it increases in the third shell by 1 from left to right
Answer to your question what nitrogen base sequence is paired with CATCGA is
O GTAGCT
Each mouse in the study has brown ears.