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What is the genotype for Huntington's disease

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Huntington's disease is autosomal dominant, meaning you only need one defective allele to inherit the disease. The "huntingtin" gene is found on Chromosome 4 [ Source: http://www.chacha.com/question/what-is-the-genotype-for-huntington%27s-disease ]
More Answers to "What is the genotype for Huntington's disease"
What is the Genotype for Huntington's Disease?
http://answers.yahoo.com/question/index?qid=20080128201213AA9CuFU
Huntington's disease is autosomal dominant, meaning you only need one defective allele to inherit the disease. The "huntingtin" gene is found on Chromosome 4, and the defective allele arises from a trinucleotide repeat expansion w...
Is Huntington's disease a homozygous genotype?
http://wiki.answers.com/Q/Is_Huntington's_disease_a_homozygous_genotype
Most patients are heterozygous for the mutant copy of huntingtin however in some rare cases there are individuals who are homozygous for the disease-causing allele. Homozygosity for the disease gene does NOT cause death at the embryo stage ...
What are the possible genotypes for Huntington's disease?
http://wiki.answers.com/Q/What+is+the+possibility+of+having+a+child+that+has+huntington's+disease
Using the letter H for the dominant trait for huntington's disease and r for the recessive trait, it would be either Hh or HH. Thats because HD is autosomal dominant.

Related Questions Answered on Y!Answers

What is the Genotype for Huntington's Disease?
Q:
A: Huntington's disease is autosomal dominant, meaning you only need one defective allele to inherit the disease. The "huntingtin" gene is found on Chromosome 4, and the defective allele arises from a trinucleotide repeat expansion within the gene.
A hybrid man for Huntington's disease is crossed with a hybrid woman for Huntington's disease. What are the %
Q: What are the % of genotypes and phenotypes of the offspring? Also, how do you set up the punnett square? I wasn't there. If you don't feel like doing the whole square, just tell me how to set it up. Or, you could tell me what a hybrid for Huntington's disease is and if the gene is recessive or dominant.
A: Hybrid means heterozygous. Huntington's disease is probably recessive. We'll use "H" as the dominant and "h" as the recessive. If the individuals are hybrid, then their genotype is "Hh". The cross would be Hh X Hh. Set up the Punnett Square and you should receive a % genotype of 25% HH, 50% Hh, and 25% hh. The phenotype would be 75% Normal, 25% with Huntington's.
Science questions for a smart person.?
Q: Lets see if you can get these questions right.[thx in advance]Multiple Choice1. The result of one human cell after meiosis istwo identical cellsfour cells, each with half the number of chromosomes as the parentfour cells, each with forty-four autosomes and two sex chromosomesone cell with an extra twenty-first chromosome2. A gamete is defined asa sex cellhaving forty-four autosomes and two sex chromosomesa normal body cellchromosomal separation in mitosis3. During metaphase I of meiosis Ithe chromosomes line up single file in the center of the cellchromosomes pull apartDNA replicateschromosomes line up across from their homologue4. What organisms did Gregor Mendel do his experiments on?rabbitsfruit fliespea plantsmice5. A trait that is not expressed when paired with a dominant allele is the definition ofrecessivedominantheterozygotehomozygote6. Describe the following genotype: Aa homozygous recessivedominant, recessiveheterozygoushomozygous dominant7. The physical expression of a gene is the definition ofdominantrecessivegenotypephenotype8. In the trait for pea shape, round is dominant over wrinkled. What are the genotype possibilities and ratio for the following cross: Rr x Rr?3 round: 1 wrinkled1 RR: 2 Rr: 1 rr2 Rr: 2 rr4 Rr = 4 round9. The heterozygous individual for an autosomal dominant traitis a carrierdoes not have the disorderhas the disorderis immune to the disorder10. The heterozygote of red/white flower color which was co-dominant would bewhitered and whiteredpink11. The heterozygote of red/white flower color which was incompletely dominant would bewhitered and whiteredpink12. A characteristic that is derived from many genes is calleda polygenic traitco-dominantincompletely dominantmultiple alleles13. Which of the following traits cannot be studied using normal dominance in humans?eye positionearlobe shapedimplesheighttongue rolling14. Tall is dominant over short for plant height. What is the phenotypic result of the following cross: Tt x Tt?all tall3 tall: 1 short2 tall: 2 short1 tall: 3 short15. Which term means the genetic make-up of an organism for a certain trait?phenotypehomozygousheterozygousgenotype16. Which of the following traits is not polygenic for humans?heightskin colorearlobe attachmenthair color17. What is the genotype of an organism that is a carrier for any autosomal recessive trait?BB Bb bb 18. Huntington's disease is an example of a(n) polygenic trait dihybrid cross autosomal dominant trait autosomal recessive trait 19. When dihybrid crosses are used more than one trait is involvedan organism is heterozygous for a traitone organism is dominant and the other is recessivea gamete does not go through meiosis20. Which of the following is an autosomal recessive trait?dwarfismalbinismHuntington's diseaseskin color
A: 1b2a3a4c5a6c7d8a9c10d11b12a13a14b15d16c17b18c19a20bI hope you have the decency to pick me for best answer after I've done your homework for you. What are you going to do for the exam?
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