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3-23_Genetics
3-23_Genetics

... the same trait (1 capital and 1 lower case) – Hetero = different ...
Human Traits Lab
Human Traits Lab

... understanding how scientists work with alleles. most traits are the result of several genes, but we will practice with some that are thought to be controlled by a single gene. ...
Study of Depression in Geriatric Population: Old Age Home and
Study of Depression in Geriatric Population: Old Age Home and

... Personnel, Bangkok, Thailand. C. Manmee, PhD and P. Ainwan, BS Rajavithi Hospital, Bangkok, Thailand INTRODUCTION: Metabolic syndrome (Mets) is a combination of medical disorders and increases risk of diabetes. Studies have shown inconsistent prevalence, but being elderly has often been found to inc ...
APOE distribution in World populations
APOE distribution in World populations

... APO B levels. Compared to the wild type allele APO*E3, the APO*E2 is associated with decrease while the APO*E4 allele tends to increase the TC, LDL-C and APO B levels. Human populations show extensive allelic variation at this locus and the gene has been associated with a variety of diseases. APOE*E ...
Mixed modelling to characterize genotype-phenotype
Mixed modelling to characterize genotype-phenotype

... There has been a marked increase in the prevalence of obesity and related metabolic disorders in our society over the past decade [1, 2]. Obesity, a major risk factor for cardiovascular morbidity and mortality, has a combination of environmental and genetic inuences [3–6]. The major environmental c ...
Pedigree Analysis
Pedigree Analysis

... Hemizygous - Males are “hemizygous” for X-linked genes – males only have one X chromosome and one allele of any X-linked gene. Allele - A version of a gene. Humans have 2 alleles of all their autosomal genes; females have 2 alleles of Xlinked genes; males have one allele of X-linked genes (and one a ...
Population Genetics
Population Genetics

... constant and fairly high. In nature, reproductive populations may go through periods of greatly reduced numbers. This can occur through natural events, such as dispersal of a few individuals to a new habitat like an island, or disease. These “bottlenecks” can also happen through man-made destruction ...
The scope of Population Genetics Forces acting on allele
The scope of Population Genetics Forces acting on allele

... •Patterns of LD in the human genome •The HapMap project. ...
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The Hardy-Weinberg Model - Advanced
The Hardy-Weinberg Model - Advanced

... using a ventilator (left) and antibiotic therapy. ...
sickle cell anemia allele frequency - word
sickle cell anemia allele frequency - word

... Introduction: Allele frequency refers to how often an allele occurs in a population. Allele frequencies can change in a population over time, depending on the 'selective forces' shaping that population. Predation, food availability, and disease are all examples of selective forces. Evolution occurs ...
Hardy Weinberg Equilibrium Notes - 2015 2016
Hardy Weinberg Equilibrium Notes - 2015 2016

... 11. Explaining Equation #1: This equation is true for any population where there are only two alleles, one dominant and one recessive for a particular trait. Let’s say our alleles are “A” and “a”. In this equation “p” represents the frequency of “A” (the dominant allele) expressed as a decimal in th ...
3-23_Genetics
3-23_Genetics

... 4. Why do we use capital and lowercase letters? ...
PART ONE - flickbio
PART ONE - flickbio

... resulting baby will have a genotype based on the cards chosen. For example, the baby may be aa. Each person should take back the card that they contributed to the baby. 4. Next, repeat step 3 so that you are making a second baby for the other person. 5. Now, in nature this does not happen, but in or ...
Population Genetics
Population Genetics

... constant and fairly high. In nature, reproductive populations may go through periods of greatly reduced numbers. This can occur through natural events, such as dispersal of a few individuals to a new habitat like an island, or disease. These “bottlenecks” can also happen through man-made destruction ...
Document
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... absence of any opposing force, like mutation. Specifically, let’s assume that: ...
Inheriting two copies of mutated genes that are
Inheriting two copies of mutated genes that are

... individuals that are homozygous recessive for the nonfunctional allele. Because the gene is essential, these individuals might fail to develop past fertilization, die in utero, or die later in life, depending on what life stage requires this gene. An inheritance pattern in which an allele is only le ...
DEVELOPMENT OF AN ORAL SUBMUCOUS FIBROSIS-SPECIFIC HAPLOTYPIC SIGNATURE – Reveiw Article
DEVELOPMENT OF AN ORAL SUBMUCOUS FIBROSIS-SPECIFIC HAPLOTYPIC SIGNATURE – Reveiw Article

... were found to be significant risk factors for OSF. The absence of both GSTM1 and GST T1 conferred a greater than 7 fold risk for this condition [24]. While studies of this nature provide strong evidence for the involvement of GST variants and risk for OSF, more prevalence studies documenting the rel ...
Name: LAB 3 ANTH 2101 MENDELIAN TRAITS and INHERITANCE
Name: LAB 3 ANTH 2101 MENDELIAN TRAITS and INHERITANCE

... ANTH 2101 ...
NAME_________KEY____________________________ Page 2
NAME_________KEY____________________________ Page 2

... As in the Scarr et al study, the flat slope (no correlation) indicates that no genetic differences exist between the groups for the mean differences in Trait 1. As in the Scarr et al study, the positive slope (positive correlation) indicates that genetic differences do exist between the groups for t ...
P.Point Lecture Template - Green River Community College
P.Point Lecture Template - Green River Community College

... where tongue rolling is dominant to non-rolling. What is the chance that the couple will produce a girl that is a non-roller? Use the following steps as a general guide to solve this and other problems: 1. Select a letter to represent the gene involved • Use upper case for the dominant allele, lower ...
lecture4-eQTLmapping
lecture4-eQTLmapping

... Prof Goncalo Abecasis (Univ of Michigan)’s lecture note Broman, K.W., Review of statistical methods for QTL mapping in experimental crosses Doerge, R.W., et al. Statistical issues in the search for genes affecting quantitative traits in experimental ...
Accounting for Non-Genetic Factors Improves the Power of eQTL
Accounting for Non-Genetic Factors Improves the Power of eQTL

... Abstract. The recent availability of large scale data sets profiling single nucleotide polymorphisms (SNPs) and gene expression across different human populations, has directed much attention towards discovering patterns of genetic variation and their association with gene regulation. The influence ...
P.Point Lecture Template - Green River Community College
P.Point Lecture Template - Green River Community College

... where tongue rolling is dominant to non-rolling. What is the chance that the couple will produce a girl that is a non-roller? Use the following steps as a general guide to solve this and other problems: 1. Select a letter to represent the gene involved • Use upper case for the dominant allele, lower ...
BIOLOGY-Hardy Weinbergy-Determining allele frequencies (DOC
BIOLOGY-Hardy Weinbergy-Determining allele frequencies (DOC

... The final three possible genotypic frequencies in the offspring become: ...
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Genome-wide association study



In genetic epidemiology, a genome-wide association study (GWA study, or GWAS), also known as whole genome association study (WGA study, or WGAS) or common-variant association study (CVAS), is an examination of many common genetic variants in different individuals to see if any variant is associated with a trait. GWASs typically focus on associations between single-nucleotide polymorphisms (SNPs) and traits like major diseases.These studies normally compare the DNA of two groups of participants: people with the disease (cases) and similar people without (controls). This approach is known as phenotype-first, in which the participants are classified first by their clinical manifestation(s), as opposed to genotype-first. Each person gives a sample of DNA, from which millions of genetic variants are read using SNP arrays. If one type of the variant (one allele) is more frequent in people with the disease, the SNP is said to be ""associated"" with the disease. The associated SNPs are then considered to mark a region of the human genome which influences the risk of disease. In contrast to methods which specifically test one or a few genetic regions, the GWA studies investigate the entire genome. The approach is therefore said to be non-candidate-driven in contrast to gene-specific candidate-driven studies. GWA studies identify SNPs and other variants in DNA which are associated with a disease, but cannot on their own specify which genes are causal.The first successful GWAS was published in 2005 and investigated patients with age-related macular degeneration. It found two SNPs which had significantly altered allele frequency when comparing with healthy controls. As of 2011, hundreds or thousands of individuals are tested, over 1,200 human GWA studies have examined over 200 diseases and traits, and almost 4,000 SNP associations have been found. Several GWA studies have received criticism for omitting important quality control steps, rendering the findings invalid, but modern publications address these issues. However, the methodology itself still has opponents.
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