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| in fungus, a sac that encloses a tetrad or an octad ascospores. |
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| a sexual spore form certai fungus species in which spores are found in a sac called as ascus. |
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| the distance between two linked gene paires where 1 percentof the product of meiosis are recombinant; a unit of distance in a linkage map |
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| statistical test that used to determine the probability of obtaining observed proportions by chance, under a specific hypothesis |
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| A crossed-shaped structure commonly observed between nonsister chromatids in meiosis; the site of crossing over |
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| a representation of all chromosomes in te genome as lines, marked with postion of genes known from their mutant phenotype, plus molecule markers. based on analysis of recombinant frequency. |
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| in a heterozygous having mutant sites within a gene or within a gene cluster, the arrangement A1A2/a1a2. |
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| the exchange of corresponding chromosomes parts between homologs by breakage and reunion |
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| the autodiographic banding pattern produced when DNA is digested with a restriction enzyme that cuts outside a family of VNTRs 9 variable number of tendem repeats) anda southern blot of the electrophoretic gel is probed with a VNTR-specific probe. unlike true fingerprints, these patterns are not unique to each individual organism |
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| two crossover in a chromosomal region under study |
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| a measure of the independance of crossover from each other, calculated by subtracting the coefficient of coincidence from 1 |
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| deviation in the frequency of haplotypes in a population from the frequency expected if the alleles at different loci are associated at random |
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| a chromosomes map; an abstract map of chromosomal loci that is based on recombinant frequencies. |
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| the situation on which two genes are on the same chromosome as deduced by recombinant fequencies less than 50 percent |
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| cumulative statistics that summarizes evidence supporting a specific linkage value |
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| a type of repetitive DNA consisting of very shortsuch repeats such as dinucleotide |
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| a difference in dna at the same locus in two genomes that is due to different repeat length of a microsatellite |
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| a site of DNA heterozygosity, not necessarily associated with phenotypic variaiton, used as atag for a particular chromosomL LOCUS |
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| an ascus containing eight ascospores, produced in species in which the tetrad normally undergoes a postmeiotic mitotic division |
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| a chromosome map in which the position of loci shown are based on recombinant frequencies |
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| Recombinant frequency (RF) |
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| the proportion of recombinant cells |
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| individual organism or cell having the a genotype produced by recombination |
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| a difference in dna sequence between individuals or haplotypes that is recognized as different restrictionn fragment length. a probe for this dna region will hybridize to different-sized fragments within restriction digests of dna from these two alleles. |
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| the presence of different numbers of short or simple repetitive elements at one particular locus in different homologous chromosomes; heterozygotes serve as useful markers for genome mapping. |
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| A nucleotide-pair difference at a given location in the genome of two or more naturally occurring individuals. |
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| A cross of an individual organism homozygous for one or more recessive alleles; used in a testscore |
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| a testscore in which one parent has three heterozygous gene pair |
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| in a heterozygote with two mutant sites within a gene or gene cluster, the arrangement a1 +/+ a2 |
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| a chromosomal locus at which a particular repetitive sequence is present in different numbers in differnt individuals or in the two different homologs in one haploid individual |
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