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16 Cards in this Set

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  • Back
genome
complete set of an organism's genetic material
histone
small protein that DNA wraps around
trisomy 21
condition in which an individual has three number 21 chromosomes, resulting in Down syndrome
Down syndrome
general set of symptoms in people with trisomy 21
nondisjunction
event during meiosis in which homologous chromosomes or sister chromatids fail to separate
duplication
change to a chromosome in which part of the chromosome is repeated
deletion
change to a chromosome in which a fragment of the chromosome is removed
inversion
change to a chromosome in which a fragment of the original chromosome is reversed
translocation
change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
transposon
genetic element that moves from one location to another in a genome
pedigree
family tree that records and traces the occurrence of a trait in a family
carrier
individual who has one copy of the allele for a recessive disorder and does not exhibit symptoms
genetic counselor
person trained to collect, analyze, and explain data about human inheritance patterns
growth factor
protein that initiates cell division
tumor-suppressor gene
gene that codes for a protein that stops cell division in particular situations
oncogene
cancer-causing gene