Examlex
The Bohr model of the hydrogen atom accounts for which quantum number?
Chromosome
A long DNA molecule with part or all of the genetic material of an organism, structured into a thread-like shape.
Crossing Over
The exchange of genetic material between homologous chromosomes during meiosis, leading to new combinations of alleles.
Sister Chromatids
Identical copies of a chromosome connected by a centromere, formed during the replication of a chromosome in preparation for cell division.
Centromere
Constriction where sister chromatids of a chromosome are held together.
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