Questions 1-3 refer to the pedigree below that represents the presence of PTC tasting in a D.C. area family. PTC tasting is inherited through a dominant allele (T). 3 The genotype of person #1 is: O a. TT O b.Tt OCT? O d.tt O e.?t
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- it is believed that the cystic fibrosis (CF) gene conferred protection to carriers during the cholera epidemics of the Middle Ages. The CF gene frequency would be expected to do what in those populations? become sex-linked recessive b. decrease c. stay the same d. increaseWhich pathology leads to an increased risk of Alzheimer’s disease? Select one: a. Homozygosity for the e3 ApoE allele b. a sedentary life style c. A mutation in the amyloid precursor protein gene d. a diet high in fat and sugars e. Homozygosity for the e4 ApoE alleleIn a group of patients, it is reported that drug p is effective only in individuals of the recessive phenotype. if q = .6 and p to .4 what fraction of patients would benefit from the treatment. Assume that the population is in HW equilibrium? a. .25 b. .36 c. .4 d. .6
- What is the Chi-squared Goodness of Fit test used to test? a. If the disease is due to environmental or genetic factors. b. The name of the disease gene. c. Whether the disease follows a AR or AD mode of inheritance at the disease gene. d. If the p-value is greater than 0.05. e. If the observed data is consistent with the specified mode of inheritance at a given disease gene.1. A disease is known to be inherited through an ADHL mode of inheritance. For a pairing of two affected individuals, what is the expected proportion of offspring that will be affected AND female? A. 0. B. 0.667. C. 0.333.The allele for freckles (F) is dominant to the allele for no freckles (f). A freckled man and an unfreckled woman have two children, a boy with freckles and a girl without freckles. What are the genotypes for all four? Question 6 options: Mom: XfXf, Dad: XY, boy: ff, girl: ff Mom: ff, Dad: FF, boy: Ff, girl: ff Mom: ff, Dad: Ff, boy: Ff, girl: ff Mom: ff, Dad: FF, boy: Ff, girl: FF
- Please read the scenario below, and then answer the question (in bold) that follows. Tay-Sachs disease is a fatal autosomal recessive disorder in children (usually by age 5) that causes a progressive degeneration of the central nervous system. This disease affects 1 in 3,500 newborns of European Ashkenazi Jewish ancestry in the U.S. population. What is the number of carriers in the population? a. 1 person b. 60 persons c. 116 persons d. 3,383 persons e. 3,441 personsIn a population of squirrels in North Carolina, the heritability forbody weight is high. This means thata. body weight is primarily controlled by genes.b. the environment has little influence on body weight.c. the variance in body weight is mostly due to genetic variation.d. both a and b are correct.please choose correct letter and discuss why you choose it.thanks 1. which among the traits is easier to control genetically? a. number of eggs per clutch b. egg weight 2. which among the statements about genetic correlation is true? a. always b. closely linked genes tend to stay together over several generations c. shown when genes have high penetrance d. none of the above 3. The part of the genotypic value that can be directly transmitted from parents to offspring? a. breeding value b. gene combination value c.environmental value d. none of the above
- Which of the following is true? Question 10 options: a) A person's phenotype is a trait that is the result of the environment only. b) A person's phenotype is a trait that is the result of genes only. c) A person's phenotype is a trait that is the result of genes and the environment. d) A person's genotype is a trait that is the result of genes and the environment.A man with blood type A and a woman of blood type B have a baby girl of blood type O. The man sues his wife for divorce, on the grounds that it is not possible for the baby to be theirs (since the blood type is not A, B. or AB). Evaluate the lawsuit on the basis of genetics (A, B alleles are co-dominant over the recessive O allele). IA = A allele IB = B allele iO = O alleleplease choose correct letter and discuss why you choose it.thanks 1. which among the statements about genetic correlation is true? a. always positive b. closely linked genes tend to stay together over several generations c. shown when genes have high penetrance d. none of the above 2. The part of the genotypic value that can be directly transmitted from parents to offspring? a. breeding value b. gene combination value c.environmental value d. none of the above