chromosomal mutation

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Related to chromosomal mutation: gene mutation
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Noun1.chromosomal mutation - (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
alteration, change, modification - an event that occurs when something passes from one state or phase to another; "the change was intended to increase sales"; "this storm is certainly a change for the worse"; "the neighborhood had undergone few modifications since his last visit years ago"
deletion - (genetics) the loss or absence of one or more nucleotides from a chromosome
inversion - (genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed
transposition - (genetics) a kind of mutation in which a chromosomal segment is transfered to a new position on the same or another chromosome
mutagenesis - an event capable of causing a mutation
gene mutation, point mutation - (genetics) a mutation due to an intramolecular reorganization of a gene
reversion - (genetics) a return to a normal phenotype (usually resulting from a second mutation)
saltation - (genetics) a mutation that drastically changes the phenotype of an organism or species
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References in periodicals archive ?
Around 0.3 million people die annually because of burn wounds around the globe with nosocomial infections contributing in 50% of these deaths.1 Gram negative, non-spore forming organism, Pseudomonas aeruginosa is responsible for 10-20% hospital acquired infections and causes 40-75% mortality in burn patients.2 Broad spectrum antimicrobial drugs, fluoroquinolones (FQn), are commonly suggested against pseudomonal infections.3 Misuse of FQn has led to an increase in bacterial resistance due to chromosomal mutation in DNA gyrase (gyr A and gyr B genes) and topoisomerase IV or changes in expression of genes controlling transport of FQns.4 Another important acquired mechanism of FQn resistance is Qnr genes.
Caption: GENETIC ABNORMALITIES: Deletion, duplication, inversion and translocation are the four types of chromosomal mutation. If a significant amount of genetic information is lost, the mutation is likely to have life-threatening consequences.
n number of jobs m number of machines [p.sub.ij] processing time of job i on machine j [p.sub.m] probability of mutation [] probability for Roulette wheel selection [] probability for sub chromosomal crossover [] probability for sub chromosomal mutation P(k) population at kth generation X* , X** best and second best chromosomes R real random number is 0 and 1 Ng maximum generation 3.
Unfortunately, Filipinos do not possess the chromosomal mutation nor the milk consuming culture that will enable them to continuously produce lactase.
Researchers in the Keck School of Medicine of the University of Southern California (USC), together with scientists in Beijing, China, have discovered a chromosomal mutation responsible for a very rare condition in which people grow excess hair all over their bodies.
It is thought that Dubowitz syndrome is an inherited genetic condition or chromosomal mutation, but no formal test exists beyond the physical examination.
These chemicals have been linked to a variety of health complications, including nervous and immune system dysfunction and chromosomal mutation. On average, CSE found that PepsiCo brands contained 36 times the pesticides permitted under EEC standards, and Coca-Cola brands contained 30 times the amount allowed.
To my knowledge, there is no indication that couples who undergo PGD because they are at high risk for a Mendelian disorder or chromosomal mutation consistently or routinely choose embryos of one sex over another.
Because most ROS are short-lived and can only diffuse short distances in cells, it is still not clear how these radicals reach the nucleus to cause gene and chromosomal mutation (54,55).
Washington, June 4 (ANI): An Indian-origin researcher and her team have discovered a chromosomal mutation responsible for a very rare condition in which people grow excess hair all over their bodies.
In most cases, expression of the components of the efflux system is regulated, and resistance occurs by chromosomal mutation that causes coordinated increased expression of pump components.