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Pedigree lab

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Pedigree lab
Marissa Lule
Isaac Cuevas
Juan Arias Andres Santana per.4 4/20/15

Pedigree
Lab

Introduction
How can you spot different pattern of inheritance? When we started this lab the question (subject) we had to try and solve was ‘Which pattern of inheritance is present in the O’Smithsteinskis and Akim­Garcia­Chan family pedigree?
If when looking at the number of people shaded in our pedigree and find that the number is increasing each generationon then we can assume that the pattern of inheritance found here is Complete Dominance
(dominant ).What are patterns of inheritance? ‘The pattern of inheritance is the manner in which a gene is transmitted. For example, the inheritance pattern of may be as an autosomal dominant trait that is transmitted from father or mother to son or daughter.’ states the doctors from MedicineNet. Phenotypes are the physical characteristics expressed with each certain genotype. While genotypes are the genetic structure/coding in our DNA (not visible) that decide what and who we are. Examples are the xy chromosomes which decide if we are a boy or girl phenotypically, XX means girl whereas XY means boy. Alleles are basically alternatives to each gene, there can be recessive or dominant alleles. There are 6 pattern of inheritances,but i'm only going to talk about 5 because Mr.O said there would be no polygenetics so there is: Complete Dominance, Incomplete Dominance, Codominance, Multiple Alleles and Sex Linked Traits. Complete Dominance is when there is one allele and two possibilities you either get the phenotype or you don’t, in this pattern of inheritance there are of course recessive and dominant alleles. In incomplete dominance and Codominance three possibilities can be found, there are no dominant or recessive alleles found and a distinct mixing can be found between the genes. In multiple alleles pattern of inheritance there are multiple alternative to the same gene, an example of this is

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