Cell-Cycle Checkpoints and Meiosis

Play an AI-generated podcast conversation about this lesson

What is the main event in telophase of cell division?

Chromosomes condense

Alignment of chromosomes

Separation of sister chromatids

Re-formation of nuclei (correct)

During which phase of cell division do the sister chromatids move toward opposite poles?

Telophase

Metaphase

Anaphase (correct)

Prophase

How does cytokinesis occur in animal cells during cell division?

Formation of a cell plate

Splitting through the centromere

Cell pinching in two with a cleavage furrow (correct)

Microtubules pulling apart the cell

What controls cell division and involves cyclin proteins and kinase enzymes?

Control of cell division Signup and view all the answers

Which phase involves the alignment of chromosomes along the center of the cell?

Metaphase Signup and view all the answers

What happens during anaphase of cell division?

Separation of sister chromatids Signup and view all the answers

What is the main difference between meiosis I and meiosis II?

Homologous chromosomes separate in meiosis I, while sister chromatids separate in meiosis II. Signup and view all the answers

During which phase of meiosis II do spindle fibers contract, splitting the centromeres and moving sister chromatids to opposite poles?

Anaphase II Signup and view all the answers

What occurs in telophase I of meiosis?

Nuclear envelopes reform around daughter chromosomes. Signup and view all the answers

Which statement accurately describes cytokinesis in meiosis?

Cytokinesis occurs simultaneously with telophase II. Signup and view all the answers

What is a key function of apoptosis in cell biology?

Preventing continuous cell division and potential tumor formation. Signup and view all the answers

In which phase of meiosis do spindle fibers bind to both sides of the centromeres?

Metaphase II Signup and view all the answers

What is the main purpose of meiosis?

To produce eggs and sperm with half the number of chromosomes Signup and view all the answers

During which phase of meiosis do chromosomes become visible and pair up?

Prophase I Signup and view all the answers

What happens during anaphase I of meiosis?

Chromosomes separate and move to opposite poles Signup and view all the answers

Which process helps ensure genetic diversity during meiosis?

Independent assortment in metaphase I Signup and view all the answers

What is the significance of telophase in meiosis?

Cell starts to divide into two daughter cells Signup and view all the answers

How does meiosis differ from mitosis in terms of chromosome separation?

Meiosis separates homologous chromosomes in anaphase, while mitosis separates sister chromatids. Signup and view all the answers