- Mitotic nondisjunction
- Failure of the two members of a chromosome pair to separate (disjoin) during mitosis so that both go to one daughter cell and none to the other.
Medical dictionary. 2011.
Mitotic nondisjunction
Look at other dictionaries:
Meiosis — Not to be confused with miosis, mitosis, or myositis. For the figure of speech, see meiosis (figure of speech). Events involving meiosis, showing chromosomal crossover Meiosis (pronounced /maɪˈoʊsɨs/&# … Wikipedia
Genetic origins of Down syndrome — Down syndrome is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on the 21st chromosome, either in whole (trisomy 21) or part (such as due to translocations). The effects of the extra copy varies… … Wikipedia
Mitosis — Not to be confused with meiosis, miosis, or myositis. Mitosis divides the chromosomes … Wikipedia
Aneuploidy — Classification and external resources ICD 10 Q90 Q98 ICD 9 … Wikipedia
Mosaic (genetics) — In genetic medicine, a mosaic or mosaicism denotes the presence of two populations of cells with different genotypes in one individual who has developed from a single fertilized egg.[1] Mosaicism may result from a mutation during development… … Wikipedia
Homologous recombination — Figure 1. During meiosis, homologous recombination can produce new combinations of genes as shown here between similar but not identical copies of human chromosome 1. Homologous recombination is a type of genetic recombination in which nucleotide … Wikipedia
Cytogenetics — A metaphase cell positive for the bcr/abl rearrangement using FISH For the scientific journal of this title, see Cytogenetics and Genome Research. Cytogenetics is a branch of genetics that is concerned with the study of the structure and function … Wikipedia
List of biology topics — Biology is the study of life and its processes. Biologists study all aspects of living things, including all of the many life forms on earth and the processes in them that enable life. These basic processes include the harnessing of energy, the… … Wikipedia
Oocyte — Stripped human oocyte; granulosa cells that had surrounded this oocyte have been removed. Gray s subject #3 38 … Wikipedia
loss of heterozygosity — (LOH) loss of the allele from one chromosome of a pair, as by deletion, nondisjunction, mitotic recombination, or suppression of function, so that the locus is converted from heterozygosity to homozygosity or hemizygosity; it is often associated… … Medical dictionary
