Meiosis

Front

What is unique to Prophase I- is that the duplicated chromosomes pair up to form _______.

Back

a tetrad.

Front

Name this phase of Meiosis:

Back

Metaphase II.

Front

In Anaphase II, the _________ separate.

Back

Sister Chromatids.

Front

Crossing over usually occurs between:

Back

Non-sister chromatids of Homologous Chromosomes.

Front

True or False: With the genetic disorder known as Down Syndrome, a person's cells have an extra copy of chromosome 21.

Back

True.

Tags

NGSS.HS-LS3-2

Front

What is Meiosis?

Back

A type of cell division that reduces the chromosome number by half, resulting in four haploid cells.

Tags

NGSS.HS-LS3-2

Front

What are homologous chromosomes?

Back

Chromosome pairs, one from each parent, that are similar in shape, size, and genetic content.

Front

Define tetrad in the context of meiosis.

Back

A structure containing four chromatids that forms during Prophase I.

Front

What is the significance of crossing over?

Back

It increases genetic diversity by exchanging genetic material between homologous chromosomes.

Front

What happens during Metaphase I?

Back

Homologous chromosomes line up at the equatorial plane of the cell.