Mastering Biology ch.10

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sister chromatids

identical copies of a chromosome; full sets of these are created during the S subphase of interphase

Genes each have a ____ that specifies its position on chromosomes

locus

chromosomes are located in

nucleus

chromosomes each contain a molecule of

DNA

Chromosomes together constitute the cells nuclear

genome

nonhomologous chromosomes

a pair of chromosomes that are different sizes and contain different genes

DNA when complexed with protein is called

chromatin

chromatin is the building material of

chromosomes

chromosomes are passed on the next generation in

gametes

centromere

the region of the chromosome that holds the two sister chromatids together during mitosis

Genes encode heritable characteristics called

traits


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