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during metaphase, the chromosomes make an ordered display according to their position and size
when two alleles of a certain gene on a pair of homologous chromosomes are not identical
the percentage of individuals with a specific genotype who also express the expected phenotype
mutation in which one base pair is replaced by another. Sometimes change the amino acid sequence
a mutation in which a base pair is replaced by another, but does not change the amino acid sequence
a mutation that involves the insertion or deletion of one or more base pairs to the DNA molecule. Greatly alters the amino acid sequence
a mechanism by which a child can inherit a genetic disease even though the parents do not express the disease. The mechanism is believed to involve a mutation during the embryonic development of the parent germ cell
an error in which homologous chromosomes or sister chromatids fail to separate normally during meiosis or mitosis
the occurrence of two breaks in a chromosome followed by the reinsertion of the missing fragment at its original site, but in an inverted order
an area where it is more prone to develop breaks and gaps when cultured in a folate-deficient medium
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