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AtMetExpress Development: A Phytochemical
AtMetExpress Development: A Phytochemical

... (AtMetExpress development) demonstrated that Arabidopsis has the capability of producing diverse metabolites with high tissue specificity. The AtMetExpress development dataset also makes it possible to understand the mechanism behind the variations in metabolic profiles among plant tissues by invest ...
Explaining the Likelihood Ratio in DNA Mixture
Explaining the Likelihood Ratio in DNA Mixture

... straightforward mathematics. The LR here is a ratio of two likelihoods: the probability of the data given the identification hypothesis, divided by the probability of the data given the alternative hypothesis. In plain language, we might state the LR as "the probability of observing the evidence ass ...
QuantGen posted
QuantGen posted

... Phenotypic variance: total variance of the population, includes variation from genes and from the environment Genetic variance: the variance that is due to variation among individuals in the alleles that they have, excludes ...
Chapter 10 (Conflict II)
Chapter 10 (Conflict II)

... Under high transmission, no selection >no gene flow between infected and uninfected part population ...
Dynamics and control of DNA sequence amplification
Dynamics and control of DNA sequence amplification

... cycles of heating and cooling or temperature gradients generated by geothermal activity7 . Mutations occurring during these cycles of environmentally controlled replication may then have led to functional nucleic acids that ultimately developed the ability to self-replicate8 . Thus, unlike the Darwi ...
Do universal codon-usage patterns minimize the effects of mutation
Do universal codon-usage patterns minimize the effects of mutation

... about 70% of the total error value, the first codon position another 29%, and the third codon position less than 1%. To highlight possible changes in code-error value along the three compositional axes, which are difficult to see in the simplex, we plotted code-error value versus composition along e ...
Bacterial plasmids - Micro-Rao
Bacterial plasmids - Micro-Rao

... numbers (~40). Plasmids are capable of transfer to other cells but not all plasmids are transferable. Only those plasmids that have genes for self transfer can be transferred. Plasmids have two prominent properties; the ability to replicate and to partition themselves between the daughter cells afte ...
SEX-DETector: a probabilistic approach to uncover sex
SEX-DETector: a probabilistic approach to uncover sex

... organisms because reference genomes are lacking and/or genomes are large and complex. Another method uses the ploidy of SNPs in order to identify sex chromosome sequences (Gautier, 2014) but requires the sequencing of a hundred individuals, which, depending on the sequencing method, could be too exp ...
Implementing array comparative genomic hybridization in male
Implementing array comparative genomic hybridization in male

... pedigrees to corroborate significance of findings, and lack of functional studies. 1,500 genes may be involved in spermatogenesis. Several hundred of these are expressed exclusively in male germs cells, which indicates that they could be candidates for causing isolated infertility. ...
Gene interactions and stroke risk in children with
Gene interactions and stroke risk in children with

... Specific ␤-globin haplotype associations have been shown in some studies, but not others.11,12 Coinherited alpha thalassemia has also been reported to be a protective factor.13,14 We have documented HLA associations with specific stroke subtypes.15 In a recent study of single nucleotide polymorphism ...
11.1-11.3 Notes
11.1-11.3 Notes

... biology forever. Mendel carried out his work with ordinary garden peas, partly because peas are small and easy to grow. A single pea plant can produce hundreds of offspring. ...
Bio-session package - Social Science Genetic Association Consortium
Bio-session package - Social Science Genetic Association Consortium

... New mutations that contribute to an increase or decrease in risk to disease arise in populations all the time. Some of these mutations can reach an appreciable frequency in the population, for example by random drift or by natural selection. As discussed in the main text, these mutations will be ass ...
Chapter 6 - People Server at UNCW
Chapter 6 - People Server at UNCW

... • Unequal X inactivation pattern can occur if the two X chromosomes have different alleles for a gene that controls cell division • Gives certain cells a survival advantage ...
The qSD12 Locus Controls Offspring Tissue-Imposed
The qSD12 Locus Controls Offspring Tissue-Imposed

... 0.50) frequencies of the embryos follow the Mendelian expectations in either of the subpopulations. If the QTL controls dormancy imposed by the offspring tissues (i.e., possibility 2), the segregation ratio or allelic frequencies would deviate from the expectations. The deviation varies in magnitude ...
Research Update Winter 2003/2004
Research Update Winter 2003/2004

... *Note: The rare individuals who have an children master speech better than extra chromosome in only some of their cells (mosaic trisomy 21) may have milder others? Why are there different levels features, but it is not possible to predict the of developmental ability among the specific course for an ...
1903. - Sutton, Walter S. The chromosomes in heredity. Biological
1903. - Sutton, Walter S. The chromosomes in heredity. Biological

... gametic chromatin as a whole. On the contrary, many points were discovered which strongly indicate8 that the position of the bivalent chromosomes in the equatorial plate of the reducing division is purely a matter of chance –– that is, that any chromosome pair may lie with maternal or paternal chrom ...
- Lab Fabiana Perocchi
- Lab Fabiana Perocchi

... Figure 1 Measuring allelic expression on a tiling array. (A) The array contains 25-mer probes (black and blue) that tile both strands of the genome of S288c with a probe offset of 8 bp and a 4-bp shift between the two strands. The array also contains probes (red) complementary to the YJM789 sequence ...
sMTA-Template
sMTA-Template

... “Available without restriction”: a Product is considered to be available without restriction to others for further research and breeding when it is available for research and breeding without any legal or contractual obligations, or technological restrictions, that would preclude using it in the man ...
Severe Perinatal Thrombosis in Double and Triple Heterozygous
Severe Perinatal Thrombosis in Double and Triple Heterozygous

... presence of PROS gene mutations showed only the paternal Met570 -+ Thr mutation, the maternal PROS gene lesion being absent. Genotypic and phenotypic data obtained from the siblings in generation IV are summarized in Table 2. It was previously demonstrated that individual III.3, who was heterozygous ...
Solid Tumour Section Liver: Intrahepatic cholangiocarcinoma Atlas of Genetics and Cytogenetics
Solid Tumour Section Liver: Intrahepatic cholangiocarcinoma Atlas of Genetics and Cytogenetics

... Hepatolithiasis represents a high-risk state for intrahepatic cholangiocarcinoma because of recurrent bacterial infections and bile stasis. Hepatitis C virus (HCV) infection has also been reported as a risk factor for cholangiocarcinoma; however, the relationship between HCV and cholangiocarcinoma f ...
reactions of sweet corn hybrids to prevalent diseases
reactions of sweet corn hybrids to prevalent diseases

... differences between classes (e.g., the hybrids with the least severe symptoms in the MR class do not differ significantly from the hybrids with the most severe symptoms in the R class). Nevertheless, a consistent response of a hybrid over several trials gives a reasonable estimate of the disease rea ...
Document
Document

... The ABO Blood Group System was the first to be identified and is the most significant for transfusion practice It is the ONLY system that the reciprocal antibodies are consistently and predictably present in the sera of people who have had no exposure to human red cells ...
Lactose Intolerance
Lactose Intolerance

... production decreases because our diet expands to include many other foods besides milk. Lactose intolerance is dose-dependent. This means, while you may be able to consume half a glass of milk on an empty stomach without developing symptoms, two glasses could make you very uncomfortable. Milk consum ...
The Tabby cat locus maps to feline chromosome B1
The Tabby cat locus maps to feline chromosome B1

... chromosome B1 and Tabby with LOD scores >3.0. Seven additional markers on cat chromosome B1 were genotyped to refine the linked region and the recombination map for this chromosome (Table 1). The most significant linkage was between marker FCA700 and Tabby (Z ¼ 7.56, h ¼ 0.03). The small number of m ...
Genetic divergence and the genetic architecture of complex traits in
Genetic divergence and the genetic architecture of complex traits in

... genetically-determined limits on the range of phenotypic variation. However, the unusually close genetic relation between the CSS progenitor strains in that study raised questions about the impact of genetic divergence: would greater divergence between progenitor strains, with the corresponding chan ...
< 1 ... 82 83 84 85 86 87 88 89 90 ... 1937 >

Microevolution

Microevolution is the change in allele frequencies that occur over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow, and genetic drift. This change happens over a relatively short (in evolutionary terms) amount of time compared to the changes termed 'macroevolution' which is where greater differences in the population occur.Population genetics is the branch of biology that provides the mathematical structure for the study of the process of microevolution. Ecological genetics concerns itself with observing microevolution in the wild. Typically, observable instances of evolution are examples of microevolution; for example, bacterial strains that have antibiotic resistance.Microevolution over time leads to speciation or the appearance of novel structure, sometimes classified as macroevolution. Macro and microevolution describe fundamentally identical processes on different scales.
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