Which correctly describes sister chromatids?(1 point)

Question

Responses

They form during metaphase when DNA is being replicated.
They form during metaphase when DNA is being replicated.

They are the daughter cells that form during cell replication.
They are the daughter cells that form during cell replication.

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

They make up the mitotic spindle within the cell.

Answer 1

The correct response is:

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

Sister chromatids are the identical copies of a single chromosome that are connected by a centromere and are present during mitosis when chromosomes line up at the metaphase plate. They do not form during metaphase; rather, they are already formed during the S phase of the cell cycle when DNA replication occurs. Sister chromatids separate during anaphase of mitosis to ensure that each daughter cell receives an identical set of chromosomes.