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U2T4 Meiosis

TermDefinition
Asexual Reproduction A type of reproduction involving only one parent that produces offspring genetically identical to itself.
Sexual Reproduction A type of reproduction involving two parents combining genetic material to create unique offspring.
Chromosome A tightly coiled, thread-like structure of DNA and protein found in cells that carries genetic information.
Chromatid One of the two identical halves of a duplicated chromosome that separate during cell division.
Gene (use glossary) A specific section of DNA that contains instructions for making a specific protein or trait.
Allele (use glossary) A different version or variation of a specific gene (such as a gene for blue eyes vs brown eyes.
Meiosis A type of cell division that cuts the chromosome number in half to create sperm and egg cells.
Homologous chromosomes A pair of chromosomes (one from mom, one from dad) that are the same size and shape and carry the same genes.
Tetrad A group of four chromatids formed when homologous chromosomes pair up closely during meiosis.
Crossing Over The process where homologous chromosomes swap pieces of DNA during meiosis, creating new genetic combinations.
Gamete A mature reproductive sex cell (a sperm or an egg).
Diploid A cell that contains two complete sets of chromosomes (one set from each parent standard body cells).
Haploid A cell that contains only one single set of chromosomes half the usual amount found in gametes.
Created by: user-2051289
 

 



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