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Mitosis words and definition


the ordering of genes in a haploid set of chromosomes of a particular organism


the biochemical units of heredity that make up the chromosomes; a segment of DNA capable of synthesizing a protein


sex cells


the cell resulting from the union of an ovum and a spermatozoon (including the organism that develops from that cell)

Somatic Cells

body cells


(genetics) an organism or cell having two sets of chromosomes or twice the haploid number


(genetics) an organism or cell having only one complete set of chromosomes


the male reproductive cell


female sex cell


female or male reproductive organ that produces sex cells and hormones; ovary or testis


The male gonads, which produce sperm and secrete male sex hormones.


located one on each side of the uterus in the female pelvis, functioning to secrete estrogen and progesterone


creation by the physical union of male and female gametes

Homologous Chromosome

chromosomes that have the same sequence of genes, that have the same structure, and that pair during meiosis


the appearance of the chromosomal makeup of a somatic cell in an individual or species (including the number and arrangement and size and structure of the chromosomes)


(genetics) cell division that produces reproductive cells in sexually reproducing organisms


the side by side pairing of homologous maternal and paternal chromosomes at the start of meiosis

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