Homework Answers
Tay-Sachs is an autosomal recessive disease. In this the heterozygous individuals are exhibiting higher survivability by being more resistant to tuberculosis. Thus in this the heterozygotes are favoured more than the homozygous individuals. THis is otherwise called heterozygous advantage or overdominance. This type of situation is an example of stabilizing selection.
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15) Tay-Sachs is inherited as a recessive allele. It is not sex-linked. Homozygous recessive individuals die...
hemophilia is inherited as an Xlinked recessive mutation. Tay Sachs disease (ts) is inherited as an...
hemophilia is inherited as an Xlinked recessive mutation. Tay Sachs disease (ts) is inherited as an autosomal recessive. A hemophilic man is heterozygous for the ts allele . what fraction of his sperm will carry the recessive ts allele and hemophilia allele together ?
Questions of Question 50 2.5 points Save A Hemophilia is inherited as an X-linked recessive mutation....
Questions of Question 50 2.5 points Save A Hemophilia is inherited as an X-linked recessive mutation. Tay Sachs disease (ts) is inherited as an autosomal recessive. A hemophilic man is heterozygous for the sale. What fraction of his sperm will carry the recessivets allele and the hemophilia allele together? 1/8 12 14 176
BATO manner. This diseaSe is inherited in an autosomal recessive (15 pts) Tay-Sachs disease is a...
BATO manner. This diseaSe is inherited in an autosomal recessive (15 pts) Tay-Sachs disease is a mutation in the HEXA gene, resulting in low EXA gene, resulting in low level of the enzyme hexosaminidase A. Tay-Sachs abilities and results in death by the disease causes deterioration of mental and physical age of four. e in which a family member (shaded) died from Tay-Sachs disease. n she had a blood finds that she is a carrier for Tay-Sachs disease whe Individual...
Use the information presented below to answer questions 6 - 8. Tay-Sachs disease is a recessive...
Use the information presented below to answer questions 6 - 8. Tay-Sachs disease is a recessive hereditary abnormality causing death within the first few years of life in individuals with the genotype tt. These individuals never reach sexual maturity. Individuals with the genotype T do not become diseased. Abnormally shortened fingers (brachyphalangy) are due to the presence of alleles in the heterozygous condition (Bb) located at a different locus. Geneticists observed that brachyphalangy was conveyed by the dominant allele and...
Question 5: Answer and give explanation In a sample of 400 men, 48 have X-linked color...
Question 5: Answer and give explanation In a sample of 400 men, 48 have X-linked color blindness and all the others have normal color vision. What is the frequency for the X-linked color blindness allele, assuming each man is hemizygous for the allele? A) 0.1 B) 0.12 C) 0.24 D) 0.48 E) 0.88 In a population, whenever the second most frequent allele of a gene has a frequency greater than 0.01, we refer to the situation as a: A) Genetic...
Below is a list of several scenarios that have occurred in our natural world. Read the...
Below is a list of several scenarios that have occurred in our natural world. Read the situation carefully and identify the type of selection taking place. Explain why you choose your answer. Stabilizing selection Genetic Drift Directional selection Heterozygote Advantage Disruptive selection Bottleneck Founder effect Underdominance A) After a chemical plant moves into town near a meadow, local downwind populations of plants begin to adapt to the resulting air pollution. Scientists document that the acid rain tolerance of several plant...
In a population, you observe 300 homozygous dominant (AA) individuals, 400 heterozygous (Aa) individuals, and 300...
In a population, you observe 300 homozygous dominant (AA) individuals, 400 heterozygous (Aa) individuals, and 300 homozygous recessive (aa) individuals. Please show all your work while answer the following questions. What are the observed allele frequencies for this population? • observed dominant allele (A) frequency: • observed recessive allele (a) frequency: What are the observed genotype frequencies for this population? • observed homozygous dominant (AA) genotype frequency: • observed heterozygous (Aa) genotype frequency: • observed homozygous recessive (aa) genotype frequency:...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are necessary for normal blood clotting. Hemophilia is caused by a recessive allele so use "XH” for normal and "Xh" for hemophilia. Since hemophilia is sex-linked, remember a woman will have two alleles (XX) but a man will have only one allele (XY). A woman who is heterozygous (a carrier) for hemophilia marries a normal man: a. What are the genotypes of the parents? b....
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar...
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar morphology since the Mesozoic era? a. stabilizing b. directional c. diversifying d. sexual e. artificial 17. Which scenario will demonstrate disruptive (diversifying) selection? a. There is heterozygote advantage (heterozygous individuals have the highest fitness). b. Female flies collect sperm from different males in her sperm bag. c. Individuals with intermediate phenotype are inferior competitors against homozygous individuals d. Insects become resistant to the most...
Background Problem N° 4 Objective: To use pedigrees in a case of an inherited disease in...
Background Problem N° 4 Objective: To use pedigrees in a case of an inherited disease in humans in order to determine the type of generic inheritance 3 4 According to the National Cancer Institute (NCI), "a pedigree is an illustration of family history and it shows relationships between family members and patterns of inheritance for certain traits and diseases."3 3 2 3 Pedigrees use standard symbols and conventions: O female: male; affected | Analyze the pedigree for myopia (nearsightedness) in...
Questions of Question 50 2.5 points Save A Hemophilia is inherited as an X-linked recessive mutation. Tay Sachs disease (ts) is inherited as an autosomal recessive. A hemophilic man is heterozygous for the sale. What fraction of his sperm will carry the recessivets allele and the hemophilia allele together? 1/8 12 14 176
BATO manner. This diseaSe is inherited in an autosomal recessive (15 pts) Tay-Sachs disease is a mutation in the HEXA gene, resulting in low EXA gene, resulting in low level of the enzyme hexosaminidase A. Tay-Sachs abilities and results in death by the disease causes deterioration of mental and physical age of four. e in which a family member (shaded) died from Tay-Sachs disease. n she had a blood finds that she is a carrier for Tay-Sachs disease whe Individual...
Use the information presented below to answer questions 6 - 8. Tay-Sachs disease is a recessive hereditary abnormality causing death within the first few years of life in individuals with the genotype tt. These individuals never reach sexual maturity. Individuals with the genotype T do not become diseased. Abnormally shortened fingers (brachyphalangy) are due to the presence of alleles in the heterozygous condition (Bb) located at a different locus. Geneticists observed that brachyphalangy was conveyed by the dominant allele and...
Question 5: Answer and give explanation In a sample of 400 men, 48 have X-linked color blindness and all the others have normal color vision. What is the frequency for the X-linked color blindness allele, assuming each man is hemizygous for the allele? A) 0.1 B) 0.12 C) 0.24 D) 0.48 E) 0.88 In a population, whenever the second most frequent allele of a gene has a frequency greater than 0.01, we refer to the situation as a: A) Genetic...
In a population, you observe 300 homozygous dominant (AA) individuals, 400 heterozygous (Aa) individuals, and 300 homozygous recessive (aa) individuals. Please show all your work while answer the following questions. What are the observed allele frequencies for this population? • observed dominant allele (A) frequency: • observed recessive allele (a) frequency: What are the observed genotype frequencies for this population? • observed homozygous dominant (AA) genotype frequency: • observed heterozygous (Aa) genotype frequency: • observed homozygous recessive (aa) genotype frequency:...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are necessary for normal blood clotting. Hemophilia is caused by a recessive allele so use "XH” for normal and "Xh" for hemophilia. Since hemophilia is sex-linked, remember a woman will have two alleles (XX) but a man will have only one allele (XY). A woman who is heterozygous (a carrier) for hemophilia marries a normal man: a. What are the genotypes of the parents? b....
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar morphology since the Mesozoic era? a. stabilizing b. directional c. diversifying d. sexual e. artificial 17. Which scenario will demonstrate disruptive (diversifying) selection? a. There is heterozygote advantage (heterozygous individuals have the highest fitness). b. Female flies collect sperm from different males in her sperm bag. c. Individuals with intermediate phenotype are inferior competitors against homozygous individuals d. Insects become resistant to the most...
Background Problem N° 4 Objective: To use pedigrees in a case of an inherited disease in humans in order to determine the type of generic inheritance 3 4 According to the National Cancer Institute (NCI), "a pedigree is an illustration of family history and it shows relationships between family members and patterns of inheritance for certain traits and diseases."3 3 2 3 Pedigrees use standard symbols and conventions: O female: male; affected | Analyze the pedigree for myopia (nearsightedness) in...
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