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Gene Section PDGFRA (platelet-derived growth factor receptor, alpha polypeptide)
Gene Section PDGFRA (platelet-derived growth factor receptor, alpha polypeptide)

... encoding a portion of the juxtamembrane domain with autoinhibitory function (Baxter et al., 2002; Gotlib et al., 2008); the disruption of which activates the fusion protein (Figure 2). The most investigated of these fusion genes is FIP1L1-PDGFRA that arise as a result of a cryptic interstitial delet ...
study protocal - Pediatric and Congenital Electrophysiology Society
study protocal - Pediatric and Congenital Electrophysiology Society

... the LQTS parent. Data collected will include: maternal age, specific mutation type of the LQTS parent, mothers obstetrical history including number and outcome of pregnancies (still birth, live birth or abortion), and number of offspring with the parental mutation. Only the source document of the ge ...
Mutations in type I collagen genes resulting in osteogenesis
Mutations in type I collagen genes resulting in osteogenesis

... chains first associate by hydrophobic and electrostatic interactions among the C-propeptides (Fig. 1A). The association is then stabilized by the formation of interchain disulphide bonds. From the carboxyl end, helix formation proceeds towards the amino terminal end in a zipper-like fashion. Simulta ...
University students` conceptions about the concept of gene - Hal-SHS
University students` conceptions about the concept of gene - Hal-SHS

CHAPTER 5: THE INHERITANCE OF SINGLE
CHAPTER 5: THE INHERITANCE OF SINGLE

... Based on the phenotype of the diploid, one can infer the genotype of meiotic products ...
The Austronesians: Historical and Comparative Perspectives
The Austronesians: Historical and Comparative Perspectives

122 lec 03 probs dominance mult alleles
122 lec 03 probs dominance mult alleles

... heterozygote shows both homozygotes ...
Recitation Section 15 Answer Key Diploid Genetics and
Recitation Section 15 Answer Key Diploid Genetics and

... Genes are fragments of DNA that encode when, where, and what product (protein or functional RNA) is to be made. Genes are assembled together into chromosomes. During cell division chromosomal segregation can be observed with a microscope. Chromosomes are inherited from parents. Thus, sexually reprod ...
A New Genotype to Phenotype Mapping Approach for Diploid
A New Genotype to Phenotype Mapping Approach for Diploid

... The key idea behind this theory [2] is that all species have descended from other species. His work shows evidence that evolution has actually taken place and he correctly outlines the mechanisms by which it occurred. Evolution is a two-stage process. In the first stage, random variations among indi ...
Variations and Extensions of Mendel`s laws
Variations and Extensions of Mendel`s laws

... type is actually defined by what kind of antigens you have on the surface of your blood cells. An antigen is a protein, and an antibody is another protein manufactured by your immune system that recognizes specific antigens. Your immune system fights disease or infection by making antibodies against ...
lecture 06 - loss of Hg, founder events
lecture 06 - loss of Hg, founder events

... some set of circumstances Selectionists argue, there’s no way you’d see so much variation unless it was important (even if only under rare circumstances) Mutations may be favorable when colonizing a new environment, or if conditions change a lot year-to-year ...
Chapter 10
Chapter 10

... and short pea plants in the following manner: ...
AMERICAN ACADEMY OF PEDIATRICS Molecular Genetic Testing
AMERICAN ACADEMY OF PEDIATRICS Molecular Genetic Testing

... Indirect analysis, often referred to as linkage analysis, is used when the location of a gene is known, although the gene itself and its function are not, or when the gene is known but the mutations are too heterogeneous to make direct analysis practical. In addition to its critical importance as a ...
8 WHEN PARENTS ARE RELATIVES—CONSANGUINITY FACT
8 WHEN PARENTS ARE RELATIVES—CONSANGUINITY FACT

Monohybrid Inheritance
Monohybrid Inheritance

... • If the total number is an odd number, pick out one more grain. • Add more paper discs the paper to make it up to 100 again, by adding equal numbers of each colour. Make a note of how many grains there are of each colour now. The proportion of the two colours will now be different. ...
Polygenic inheritance and genes in populations
Polygenic inheritance and genes in populations

... with certainty that the allele frequencies in the gene pool can be calculated directly. • This occurs when there is a co-dominant relationship between two alleles. • In reality we could not directly calculate the allele frequencies in the sheep population on the previous slide as we cannot tell the ...
fulltext
fulltext

Monohybrid Inheritance
Monohybrid Inheritance

... • If the total number is an odd number, pick out one more grain. • Add more paper discs the paper to make it up to 100 again, by adding equal numbers of each colour. Make a note of how many grains there are of each colour now. The proportion of the two colours will now be different. ...
BASIC FEATURES OF BREEDING
BASIC FEATURES OF BREEDING

...  First proposed by Shull (1908) and late expanded by Hull (1945)  It states that the heterozygote (Aa) at one or more loci is superior to either homozygote (AA or aa)  Model would be Aa > aa or AA  They recognized importance of dominance, but it alone cannot account for observed heterosis. ...
Summary of topics Timeline of Mendelian genetics
Summary of topics Timeline of Mendelian genetics

A Rare Cause of Polyuria and Polydipsia in a Patient With Cystic
A Rare Cause of Polyuria and Polydipsia in a Patient With Cystic

... normal or increased size [6, 14]. In our patient, bilateral enlarged hyperechogenic kidneys as the common assumption of ARPKD were already confirmed by antenatal US and the presence of associated extrarenal abnormalities as MODY 5 led us to consider the diagnostic accuracy and study direct genetic t ...
Genes and Genomes
Genes and Genomes

...  DNA markers 'mark' locations where DNA sequence varies (2 or more alleles) – Such polymorphisms can vary within and among individuals (e.g. heterozygotes vs. homozygotes) and populations ...
The Inheritance of the Fragile X Gene
The Inheritance of the Fragile X Gene

... syndrome (but some studies suggest there may be a link to some mild symptoms such as anxiety in social situations). A woman with a premutation has a 50% (1 in 2) chance of passing on the premutation to each of her children. When passed on by a woman a premutation will either stay the same size or ma ...
Cultural transmission of fitness - Université Paris-Sud
Cultural transmission of fitness - Université Paris-Sud

... the changes in allelic frequencies and how it can be distinguished from the two others using genetic data (and demographic data where available). Our focus is not the evolution of cultural traits [9,10] but rather the genetic consequences of the cultural transmission of any behaviour that has an eff ...
Sepiapterin Reductase Placemat
Sepiapterin Reductase Placemat

... with cerebral palsy. By age 5, Alexis was having difficulty swallowing and was wasting away, symptoms not consistent with cerebral palsy. Retta came across an article about a rare disorder, dopa-responsive dystonia (DRD), which is caused by a deficiency of the brain neurotransmitter dopamine. The sy ...
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Epistasis



Epistasis is a phenomenon that consists of the effect of one gene being dependent on the presence of one or more 'modifier genes' (genetic background). Similarly, epistatic mutations have different effects in combination than individually. It was originally a concept from genetics but is now used in biochemistry, population genetics, computational biology and evolutionary biology. It arises due to interactions, either between genes, or within them leading to non-additive effects. Epistasis has a large influence on the shape of evolutionary landscapes which leads to profound consequences for evolution and evolvability of traits.
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