Question

complex organisms quick check
which correctly describes sister chromatids? (1 point)
they form during metaphase when dna is being replicated.
they are part of the lined - up chromosomes in mitosis.
they are the daughter cells that form during cell replication.
they make up the mitotic spindle within the cell.

Explanation:

• Sister chromatids are identical copies of a chromosome connected by a centromere.
• During mitosis, chromosomes (with sister chromatids) line up at the metaphase plate.
• DNA replication occurs in S - phase (not metaphase), so the first option is wrong.
• Daughter cells form after cytokinesis (not sister chromatids), so the third option is wrong.
• Mitotic spindle is made of microtubules (not sister chromatids), so the fourth option is wrong.

Answer:

They are part of the lined - up chromosomes in mitosis.