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Cross Over

Definition

Cross over is a process during meiosis where two chromosomes pair up and exchange segments of their genetic material.

Analogy

Imagine you and your friend both have different playlists on your phones. You decide to swap some songs with each other so now both playlists have some original songs and some new ones. This swapping process is like cross over in genetics!

Related terms

Recombination: Recombination refers to any process in which DNA sequences interact and undergo a physical rearrangement.

Genetic Variation: Genetic variation refers to diversity in gene frequencies, which can lead to variations among individuals within species due to crossing over.

Meiosis: Meiosis is a type of cell division that reduces the number of chromosomes by half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to them.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.