Meiosis

Front

What is Meiosis?

Back

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four genetically diverse daughter cells, each with half the number of chromosomes of the original cell.

Tags

NGSS.HS-LS3-2

Front

What occurs during Prophase I of Meiosis?

Back

During Prophase I, homologous chromosomes pair up and form tetrads, allowing for crossing over and genetic recombination.

Front

What is the significance of crossing over?

Back

Crossing over increases genetic diversity by exchanging genetic material between homologous chromosomes during Prophase I.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Front

What happens during Metaphase I?

Back

During Metaphase I, homologous chromosome pairs are aligned at the equatorial plane of the cell, attached to spindle fibers.

Front

What is Anaphase I?

Back

Anaphase I is the stage where homologous chromosomes are pulled apart to opposite poles of the cell.

Tags

NGSS.HS-LS3-2

Front

What occurs during Telophase I?

Back

During Telophase I, the cell divides into two daughter cells, each containing half the number of chromosomes, which are still in the form of sister chromatids.

Tags

NGSS.HS-LS1-4

Front

What is the outcome of Meiosis II?

Back

Meiosis II results in four haploid daughter cells, each with individual chromatids, following the separation of sister chromatids.

Front

What happens during Prophase II?

Back

During Prophase II, the chromosomes condense again, and the nuclear envelope breaks down if it had reformed.

Front

What is Metaphase II?

Back

In Metaphase II, chromosomes line up at the equator of the cell, similar to Metaphase in mitosis.

Front

What occurs during Anaphase II?

Back

Anaphase II is when sister chromatids are pulled apart to opposite poles of the cell.