University of Central Oklahoma CRI-DU-CHAT SYNDROME By James Truby May 3‚ 2006 BIO 2233 Heredity Paper Assignment CRI-DU-CHAT SYNDROME (CDCS) Cri-du-chat syndrome (CDCS) refers to a unique combination of physical and mental characteristics associated with a loss of genetic material on the distal short arm of the fifth chromosome. This loss of genetic material is referred to as a deletion. CDCS is also called 5p- syndrome (5p-S)‚ 5p monosomy‚ or Cat Cry syndrome which was
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possible genotypes for Desiree‚ Armand‚ and the baby. Armand’s genotype Desiree’s genotype Baby’s genotype 5. Consider the skin pigmentation of biracial individuals‚ such as Halle Berry‚ Lenny Kravits‚ Mariah Carey‚ or "The Rock." Can these phenotypes (skin colors) be explained by the same Mendelian model? Part II – Skin Color is a Polygenic Trait Differences in skin color are largely due to differences in the amount of melanin‚ a dark pigment produced by skin cells. There are different variations
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Tay-Sachs Disease Tay-Sachs disease is a rare inherited autosomal recessive disorder first discovered in 1881. It is a disease that is found in many populations‚ but commonly affects the populations of the Ashkenazi Jews. The disorder is caused when there is an absence of enzyme called beta hexosaminase A that is found on chromosome 15. The most common mutation occurs in mostly 80 percent of Tay-Sachs patients is the four base pair addition (TATC) on exon 11 and a G to C inversion
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UNIT I In an observational test one has no control over the independent variable. In an experiment there is an independent and dependent variable‚ and one has control over the independent variable Dependent variable: value depends on that of another‚ what is causing result‚ what you measured. Independent variable: value does NOT depend on that of another Ex: Effect flower color 0n attraction of bees. Ind: flower color‚ Dep: what result is Properties of Life: order‚ evolutionary adaptation‚ response
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The Leadership Quarterly 24 (2013) 45–60 Born to lead? A twin design and genetic association study of leadership role occupancy Jan-Emmanuel De Neve a‚b‚⁎‚ Slava Mikhaylov a‚ Christopher T. Dawes c‚ Nicholas A. Christakis d‚ James H. Fowler e a University College London‚ UK b Centre for Economic Performance (LSE)‚ UK c New York University‚ USA d Harvard Medical School‚ USA e University of California‚ San Diego‚ USA We address leadership emergence and the possibility that there is a partially innate
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expression that is expressed only when its allele is the only form of the gene present in the genotype. incomplete dominance - Neither allele is dominant to the other‚ thus each is expressed in the heterozygous genotype producing an intermediate phenotype. EX. Red (RR) and White (R’R’) snapdragons produce pink (RR’). epistasis - A condition in which one gene pair has the ability to mask or prevent the expression of another gene pair. EX. Coat color and pigment deposition in mice. co-dominance
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Annotated Bibliography Article Reference Taylor‚ L. and Oliver‚ C. (2008). The behavioural phenotype of Smith-Magenis syndrome: Evidence for a gene-environment interaction. Journal of Intellectual Disability Research‚ 52‚ 830-841. (DOI: 10.1111/j.1365-2788.2008.01066.x) Objective/Purpose Smith-Magenis syndrome (SMS) is not only evident through physical characteristics such as‚ a prominent forehead‚ up-slanting eyes and short stature; but also by developmental delays and moderate to severe
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Complex 9 (TRAPPC9) is linked to moderate to severe forms of NonSyndromic Autosomal Recessive Mental Retardation (NS-ARMRA)‚ a disease which affects mostly patients of Middle-Eastern descent. Patients afflicted by TRAPPC9 mutations exhibit secondary phenotypes associated with musculoskeletal defects. TRAPPC9 is a protein subunit of Transport Protein Particle II318‚ which is localized at the ER exit sites.424 TRAPPC9 is required for protein trafficking that recycle through the early endosome.51 TRAPPC9
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questioned. Research has revealed that social environment can play a role in the onset of psychotic disorders (van Os & McGuffin‚ 2003). Furthermore‚ findings from general and genetic epidemiology show that the relationship between genotype and phenotype‚ in the case of psychosis‚ is mediated by the environment. This gene-environment interaction is agreed upon between most geneticists in the case of schizophrenia. Literature conducted on the genetic association with schizophrenia such as genetic
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This article is about evolution in biology. For other uses‚ see Evolution (disambiguation). Page semi-protected For a generally accessible and less technical introduction to the topic‚ see Introduction to evolution. Part of a series on Evolutionary biology Diagrammatic representation of the divergence of modern taxonomic groups from their common ancestor. Key topics[show] Processes and outcomes[show] Natural history[show] History of evolutionary theory[show] Fields and applications[show]
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