Meaning & Definition of word "Meiosis"

Meiosis

/maɪˈoʊsɪs/

1. A type of cell division that reduces the chromosome number by half, resulting in the production of gametes (sperm and eggs) in sexually reproducing organisms.
- Example: Meiosis is essential for sexual reproduction, ensuring genetic diversity in offspring.
2. The process by which haploid gametes are formed from diploid cells through two consecutive divisions.
- Example: During the process of meiosis, homologous chromosomes are separated and distributed into different gametes.
3. A reduction division in which the number of chromosomes is halved, specifically occurring in the formation of gametes.
- Example: Errors in meiosis can lead to genetic disorders such as Down syndrome, caused by an extra chromosome.

From Greek meiosis, meaning 'lessening', from meion, meaning 'to lessen'.

meiosis I:

The first division stage of meiosis where homologous chromosomes separate.

meiosis II:

The second division stage of meiosis where sister chromatids separate.

independent assortment:

The random distribution of maternal and paternal chromosomes into gametes during meiosis.

mitosis:

A type of cell division that results in two identical daughter cells.

gamete:

A reproductive cell (sperm or egg) that participates in fertilization.

chromosome:

A thread-like structure composed of DNA and protein that carries genetic information.

Meaning: The process of producing diverse offspring.

Example Sentence: Meiosis is like a genetic shuffle, making sure no two organisms are exactly the same.

Meaning: The cool way cells make babies.

Example Sentence: You know, meiosis is how cells are like, 'Let's mix things up and have some fun!'