Sinonimi & Informazioni su | Parola Inglese ALLELE

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Esempi di utilizzo di ALLELE in una frase

• An allele, or allelomorph, is a variant of the sequence of nucleotides at a particular location, or locus, on a DNA molecule.
• Partial imprinting occurs when alleles from both parents are differently expressed rather than complete expression and complete suppression of one parent's allele.
• Originally, the wild type was conceptualized as a product of the standard "normal" allele at a locus, in contrast to that produced by a non-standard, "mutant" allele.
• While the LaPerm gene is a simple dominant, the Selkirk gene (Se) acts as an incomplete dominant; incompletely dominant allele pairs produce three possible genotypes and phenotypes: heterozygous cats (Sese) may have a fuller coat that is preferred in the show ring, while homozygous cats (SeSe) may have a tighter curl and less coat volume.
• In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome.
• Genetic drift, also known as random genetic drift, allelic drift or the Wright effect, is the change in the frequency of an existing gene variant (allele) in a population due to random chance.
• They are often the result of population bottlenecks from larger populations, leading to loss of heterozygosity and reduced genetic diversity and loss or fixation of alleles and shifts in allele frequencies.
• Penetrance in genetics is the proportion of individuals carrying a particular variant (or allele) of a gene (genotype) that also expresses an associated trait (phenotype).
• In a series of papers starting in 1918 and culminating in his 1930 book The Genetical Theory of Natural Selection, Fisher showed that the continuous variation measured by the biometricians could be produced by the combined action of many discrete genes, and that natural selection could change allele frequencies in a population, resulting in evolution.
• ABO blood group system – abscisic acid – absorption spectrum – abyssal zone – acetylcholine – acetyl-CoA – acid – acid precipitation – acoelomate – acrosome – actin – action potential – active site – adaptive radiation – address-message concept – adenosine 5'-triphosphate – adenylyl cyclase – adrenal gland – adrenodoxin – aerobic organism – age structure – agonist – AIDS – albumin – aldehydes – aldosterone – algae – allantois – allele – allometry – allopatric speciation – allosteric binding site – allosteric effector – allosteric enzyme – allosteric site – allozyme – alpha helix – amino acid – aminoacyl tRNA synthetase – amino group – amniocentesis – amniote – amphipathic molecule – anabolism – anaerobic organism – anaerobic respiration – androgen – anemia – aneuploidy – angiosperm – anther – anthrax – antibiotic – antibody – anticodon – antidiuretic hormone – antigen – apical dominance – apical meristem – apolipoprotein – apoplast – apoptosis – aquaporin – Archaea – archegonium – arteriosclerosis – artery – arthritis – ascus – asexual reproduction – atomic number – ATP – ATP synthase – atrioventricular valve – atrium – autoimmune disease – autonomic nervous system – autosome – auxin – axillary bud – axon.
• Hardy's paper was focused on debunking the view that a dominant allele would automatically tend to increase in frequency (a view possibly based on a misinterpreted question at a lecture).
• In population genetics, allele frequencies are used to describe the amount of variation at a particular locus or across multiple loci.
• It is most common in individuals homozygous for a recessive allele on chromosome 16 that produces an altered version of the MC1R protein.
• Markers on different chromosomes are perfectly unlinked, although the penetrance of potentially deleterious alleles may be influenced by the presence of other alleles, and these other alleles may be located on other chromosomes than that on which a particular potentially deleterious allele is located.
• Genetically, the palomino color is created by a single allele of a dilution gene called the cream gene working on a "red" (chestnut) base coat.
• Hard landscapes are characterized by the maze-like property by which an allele that was once beneficial becomes deleterious, forcing evolution to backtrack.
• Hardy and Wilhelm Weinberg independently formulate the Hardy–Weinberg principle which states that both allele and genotype frequencies in a population remain in equilibrium unless disturbed.
• The predominant allele has a normal, tumor-suppressive function whereas high penetrance mutations in these genes cause a loss of tumor-suppressive function which correlates with an increased risk of breast cancer.
• This leads to the founder's effect and the population can have different allele frequencies and phenotypes than the original population.
• Although more research is needed, the genetic cause of radial hypoplasia is believed to come from a rare allele of the Sonic hedgehog (Shh) gene.
• Horses of related breeds were tested (90 Colombian Pasos, 20 Mangalargas, 44 Lusitanos, and 42 Andalusian horses), and none were found to have either tiger eye allele.
• Single nucleotide substitutions with an allele frequency of less than 1% are sometimes called single-nucleotide variants (SNVs).
• Hypostatic gene, a gene whose phenotype is altered by the expression of an allele at a separate locus, in an epistasis event.
• This allows for analyses of Hardy–Weinberg equilibrium, linkage disequilibrium and other features of a population's allele frequencies.
• These types of selection also operate by favoring a specific allele and influencing the population's future phenotypic ratio.

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