AP Bio Insta-Review Topic 5.1: Meiosis

Front

What is the ploidy of a daughter cell if the parent cell is 2N?

Back

1N

Front

At which stage does the cell transition from diploid to haploid?

Back

Meiosis I

Front

During which phase does independent assortment occur?

Back

Metaphase I

Front

In which phase does crossing over take place?

Back

Prophase I

Front

How many rounds of DNA replication occur during meiosis?

Back

1

Front

Define meiosis.

Back

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four haploid cells from one diploid cell.

Front

What is the significance of crossing over in meiosis?

Back

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

Front

What are homologous chromosomes?

Back

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

Front

What is the difference between meiosis I and meiosis II?

Back

Meiosis I is a reductional division that separates homologous chromosomes, while meiosis II is an equational division that separates sister chromatids.

Front

What is the role of spindle fibers during meiosis?

Back

Spindle fibers help separate chromosomes during cell division by attaching to the centromeres and pulling them apart.