Balancer Chromosome
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- Balancer chromosomes (or simply balancers) are a type of genetically engineered chromosome used in laboratory biology for the maintenance of recessive...
efficiently carried out a balancer screen using a balancer chromosome constructed by Allan Bradley et al. on mouse chromosome 11. In this screen, an ENU-induced...- genetics shorthand with the symbol BC. bacterial artificial chromosome (BAC) balancer chromosome base An abbreviation of nitrogenous base and nucleobase....
- pair of homologous chromosomes. The other homologous chromosome is a modified so-called balancer chromosome. Balancer chromosomes contain a sizable inversion...
- by FLP-FRT recombination. As one copy of a gene, provided by the balancer chromosome, is often enough to rescue a mutant phenotype, MARCM clones can be...
XY sex-determination system (redirect from Chromosome 23)individual is determined by a pair of sex chromosomes. Females have two of the same kind of sex chromosome (XX), and are called the homogametic sex. Males...
a chromosome rearrangement in which a segment of a chromosome becomes inverted within its original position. An inversion occurs when a chromosome undergoes...
embryonic lethal genotypes: fat-tailed (1A/1A) or slim-tailed (1B/1B). Balancer chromosome Recessive lethals Northern crested newt Hermann Joseph Muller Linkage...
X-inactivation (redirect from X chromosome inactivation)by which one of the copies of the X chromosome is inactivated in therian female mammals. The inactive X chromosome is silenced by being packaged into a...
numbers of sex chromosomes. In order to neutralize the large difference in gene dosage produced by differing numbers of sex chromosomes among the sexes...
mutation of the UBE3A gene on that chromosome. Occasionally it is due to the inheritance of two copies of chromosome 15 from the father and none from the...
meiotic recombination, facilitating genetic studies. Recessive lethal "balancer chromosomes" carrying visible genetic markers can be used to keep stocks of lethal...- Painter T.S. 1933. "A new method for the study of chromosome rearrangements and the plotting of chromosome maps". Science 78: 585–586. Stalker H.D and Carson...
Sex-determination system (section Chromosomal systems)sex chromosomes in bugs. In 1917, C.E. Allen, discovered sex determination mechanisms in plants. In 1922, C.B. Bridges, put forth the Genic Balance Theory...- Gene duplication (redirect from Chromosome duplication)Gene duplication (or chromosomal duplication or gene amplification) is a major mechanism through which new genetic material is generated during molecular...
Sex linkage (redirect from X chromosome disorders)when a gene mutation (allele) is present on a sex chromosome (allosome) rather than a non-sex chromosome (autosome). In humans, these are termed X-linked...- induction or transposable element insertions. The creation of specific balancer chromosomes that are restrictive to only a small region of the genome can guarantee...
- ISBN 978-0-19-976643-7. genic balance: a mechanism of sex determination, originally discovered in Drosophila, that depends on the ratio of X chromosomes to sets of autosomes...
- XXXY syndrome (category Sex chromosome aneuploidies)characterized by a sex chromosome aneuploidy, where individuals have two extra X chromosomes. People in most cases have two sex chromosomes: an X and a Y or...
- Sex selection (redirect from Family balancing)actively rendering the second sex chromosome to be either a Y chromosome (resulting in a male), or an X chromosome (resulting in a female). The Ericsson...
- determined that the gene defect that causes NF-1 lies on chromosome 17, and the defect for NF-2 on chromosome 22. These discoveries, medical experts agree, should
- an instance of mutation, a sequence change within the DNA of a gene or chromosome of an organism. The natural occurrence of genetic mutations is integral
- these mechanisms): I. Interstitial deletion of the region on copy of chromosome 15 inherited maternally (~4 Mb) (65-75%) II. Paternal uniparental disomy