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Chromosome Replication and Separation

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Questions and Answers

What happens to sister chromatids during cell division?

They remain attached at the centromere.

They reattach after division.

They separate into two nuclei. (correct)

They are converted into chromosomes before division.

What is the centromere?

The point where two sister chromatids are most closely attached. (correct)

The area where chromosomes are created after division.

The region where DNA replicates.

The space where the cell membrane contracts.

Which of the following statements about duplicated chromosomes is true?

Duplicated chromosomes consist of two sister chromatids. (correct)

Each duplicated chromosome contains a single chromatid.

Duplicated chromosomes do not condense during cell division.

Sister chromatids fuse into one chromosome after division.

When do sister chromatids become individual chromosomes?

<p>Once they are separated during cell division.</p> Signup and view all the answers

What occurs before cell division in relation to chromosomes?

<p>DNA is replicated and chromosomes condense.</p> Signup and view all the answers

Study Notes

Chromosome Replication and Condensation

DNA replicates before cell division.
Chromosomes condense.
Each duplicated chromosome has two sister chromatids.

Sister Chromatids and the Centromere

Sister chromatids are attached to each other.
The centromere is the narrow part where sister chromatids are joined most tightly.

Chromosome Separation

Sister chromatids separate during cell division.
Each separated chromatid becomes a chromosome in a new nucleus.

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Description

This quiz delves into the process of chromosome replication and condensation prior to cell division. It covers the structure of sister chromatids, the role of the centromere, and the separation of chromatids during cell division, leading to new nuclei formation.