Vocabulary words from the AP Edition of Campbell Biology, Chapter 15.
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| 258875692 | chromosome theory of inheritance | genes have specific loci along chromosomes, and these chromosomes undergo segregation and independent assortment | |
| 258875693 | wild type | the phenotype for a character most commonly observed in populations | |
| 258875694 | sex-linked gene | a gene located on either sex chromosome | |
| 258875695 | Duchenne muscular dystrophy | a sex-linked disorder characterized by a progressive weakening of the muscles and loss of coordination | |
| 258875696 | hemophilia | a sex-linked recessive disorder defined by the absence of one or more of the proteins required for blood clotting | |
| 258875697 | Barr body | the inactive X in each cell of a female condenses into a compact object, lies along the inside of the nuclear envelope | |
| 258875698 | linked genes | genes located on the same chromosome that tend to be inherited together in genetic crosses | |
| 258875699 | genetic recombination | the production of offspring with combinations of traits that differ from those found in either parent | |
| 258875700 | parental types | offspring which inherit a phenotype that matches one of the parental phenotypes | |
| 258875701 | recombinant types | offspring which with a phenotype different from each parent | |
| 258875702 | crossing over | the reciprocal exchange of genetic material between nonsister chromatids during prophase I of meiosis | |
| 258875703 | genetic map | an ordered list of the genetic loci along a particular chromosome | |
| 258875704 | linkage map | a genetic map based on recombination frequencies | |
| 258875705 | map units | one is equal to a 1% recombination frequency | |
| 258875706 | cytogenetic maps | locate genes with respect to chromosomal features | |
| 258875707 | nondisjunction | the members of a pair of homologous chromosomes do not move apart properly during meiosis I or sister chromatids fail to separate during meiosis II | |
| 258875708 | aneuploidy | chromosomal aberration in which one or more chromosomes are present in extra copies or are deficient in number | |
| 258875709 | monosomic | a cell that has only one copy of a particular chromosome instead of two | |
| 258875710 | trisomic | a diploid cell with three copies of a particular chromosome instead of two | |
| 258875711 | polyploidy | the chromosomal alteration in which the organism has more than two complete chromosome sets in all somatic cells | |
| 258875712 | deletion | occurs when a chromosomal fragment is lost | |
| 258875713 | duplication | occurs when the deleted fragment becomes attached as an extra segment to a sister chromatid | |
| 258875714 | inversion | occurs when a chromosomal fragment reattaches to the original chromosome but in the reverse orientation | |
| 258875715 | translocation | occurs when the fragment joins a non-homologous chromosome, rearranging along the chromosome | |
| 258875716 | Down syndrome | an aneuploid condition resulting from an extra chromosome 21, so that each body cell has a total of 47 chromosomes | |
| 258875717 | genomic imprinting | variation in phenotype depending on whether an allele is inherited from the male or female parent |
