Survey at least 20 people to find out what traits they have for each of the features below. Tally the numbers for each trait and record those totals in each column. When completing the survey‚ be sure to include yourself as one of the individuals surveyed. Also include at least one set of parents and offspring in the individuals you survey. Document the features of each member of the family you surveyed within the data table‚ but also make a special note of these features in the observation section
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Unaffected male female affected with cystic fibrosis unaffected female Generation I II III IV V Pedigree showing inheritance of cystic fibrosis A Questions: 1. According to the pedigree‚ is cystic fibrosis inherited as a dominant or as a recessive traitKey: male with Huntington’s Disease unaffected male female with Huntington’s Disease unaffected female Generation I II III IV V Pedigree showing Inheritance of Huntington’s Disease Key: male with Huntington’s Disease
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September 18‚ 2011 Period 8 AP Bio Ms. Dahle September 12‚ 2011 TITLE: Population Genetics and Evolution Within a Gene Pool INTRODUCTION: The Hardy-Weinberg scheme is a way of viewing evolution as changes in the frequency of alleles in a population of organisms. If A and a are alleles for a particular gene and each individual has two alleles then p is the frequency of the A allele and q is the frequency of a alleles. The frequency of the possible diploid combinations is expressed in the equation
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experiments with pea plants? A) There is considerable genetic variation in garden peas. B) Traits are inherited in discrete units‚ and are not the results of "blending." C) Recessive genes occur more frequently in the F1 generation than do dominant ones. D) Genes are composed of DNA. E) An organism that is homozygous for many recessive traits is at a disadvantage. 2) How many unique gametes could be produced through independent assortment by an individual with the genotype AaBbCCDdEE? Write down
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Epidermolysis Bullosa 2012- 2013 Overview of the disease Epidermolysis bullosa is a distressing and painful genetic skin condition[1]. This is a rare inherited condition commonly known as Butterfly disease in Children[2]. This causes the skin layers and internal body linings to blister. There are three major forms and at least 16 to 20 subtypes which can range in severity from mild blistering to more disfiguring and life-threatening disease. Many cases of epidermolysis bullosa are often not
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inherit a mutant gene. If that happens‚ Stickler’s Syndrome results from an accidental mutation in a few genes. Researchers have found four different types of mutations: COL2A1‚ COL9A1‚ COL11A1‚ and COL11A2 genes that cause Stickler. Genes are portions of DNA that are for all of the characteristics: eye color‚ and even propnsity to get high cholesterol. When the Syndrome is affected by the mutations in COL9A1 gene‚ it is aquired in an Autosomal Recessive pattern. When some gene pairs can be made
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having two carried alleles for the color of a flower in a gene‚ with P for purple and p for white‚ the three possible combinations which might exist in any one plant are PP making a purple plant‚ pp to make a white plant‚ or Pp resulting in a ‘hybrid’ plant. 2.) Out of the genotypes PP‚ Pp‚ pp‚ the resultant flower colors are (as described above in exercise 1) are purple (for PP‚) purple or purplish-white (for Pp- likely purple as it is dominant‚ or a mixture of the colors‚) or white (for the case of
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gamete types are separated by commas in the table below. Genotype Gametes: AA A Aa A‚ a Bb B‚ b bb b cc c AABB AB AAbb Ab Aabb Ab‚ ab AaBb AB‚ Ab‚ aB‚ ab AaBbCc ABC‚ ABc‚ Abc‚ AbC‚ aBc‚ aBC‚ abC‚ abc 2. In summer squash‚ white fruit color (W) is dominant over yellow (w). If a squash plant homozygous for white is crossed with one homozygous for yellow‚ what will be the apearance of the F1? of the F2? of the offspring of a cross of the F1 back to its white parent? of the offspring of a cross of the
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affect the development of a fetus will be rendered. In defining and describing the genetic influences‚ Dominant-Recessive Inheritance transpire when a single allele disturbs the characteristic s of a child it is referred to as dominant. The second allele is referred to as recessive because it does not hold any effect (Berk‚ 2010). In example‚ if (P) is dominant/homozygous and (p) is recessive/heterozygous‚ one parent holds the (P) trait and the other hold the (p) trait‚ the child trait would be
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Genetics Experimental Analysis Set #2 Linkage 1. In gorgonzolas‚ there are three recessive traits that affect the organism’s appeal: shrunken fruit‚ foul-smelling flowers‚ and short height. A heterozygote was crossed with a homozygote‚ yielding the following offspring: 46 - foul-smelling 44 - shrunken fruit‚ short height 8 - short height 8 - shrunken fruit 7 - foul-smelling‚ short height 6 - foul-smelling‚ shrunken fruit 3 - foul-smelling‚ shrunken fruit‚ short
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