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Chapter 6 Vocab

TermDefinition
somatic cell cells that make up all the body tissues and organs, except gametes
gamete a haploid reproductive cell that unites with another haploid cell to form a zygote
homologous chromosome describes a character that is shared by a group of species because it is inherited from a common ancestor
autosome any chromosome that is not a sex chromosome
sex chromosome one of the pair of chromosomes that determines the sex of an individual
sexual reproduction reproduction in which gametes from two parents unite
fertilization the union of a male and female gamete to form a zygote
diploid a cell that contains two haploid sets of chromosomes
haploid describes a cell, nucleus, or organism that has only one set of unpaired chromosomes
meiosis a process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells (gametes and spores)
gametogenesis process by which gametes are produced through the combination of meiosis and other maturational changes
sperm male gamete
egg female gamete
polar body haploid cell produced during meiosis in the female of many species; these cells have little more than DNA and eventually disintegrate
Created by: mbaker36