Accuracy of mitosis stage descriptions

Steps:

• Statement 1: Telophase reforms nuclear envelopes around decondensed chromosomes at each pole, forming two nuclei—correct.
• Statement 2: Centrioles form spindle poles but do not attach chromosomes; kinetochores on chromosomes bind spindle microtubules—incorrect.
• Statement 3: Anaphase separates sister chromatids by shortening spindle fibers, pulling them to opposite poles—correct.
• Correct statements are 1 and 3, matching option C.

Why C is correct:

• C identifies 1 and 3 as true based on standard mitosis definitions where telophase completes nuclear division and anaphase separates chromatids.

Why the others are wrong:

• A includes incorrect statement 2.
• B omits correct statement 3 and includes incorrect 2.
• D omits correct statement 1 and includes incorrect 2.

Final answer: C