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