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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 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.In 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.In 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 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 persons
- In their case-control study investigating the link between smoking and lung cancer, Doll and Hill selected controls who were similar to the cancer cases in a number of characteristics. This process of control selection is commonly known as a. Randomization b. Manipulation c. Matching d. Random selectionWhich 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 alleleThe 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
- What is the expected ratio of phenotypes among children when the parents are of the AB blood type and O blood type ( mother and father)? A) Expect 1 A type : 2 O type ratio B) Expect 1 A type : 1 B type ratio C) Expect 1 AB type: 1 O type ratio D) Expect 3 AB type: 1 O type ratio1. If one man in 2,500 is hemophilic, the frequency of the allele h for hemophilia in the population is a.1/62500 b.c.1/25 c.1/2500 d.1/50The coefficient of relatedness between a woman and her aunt (her mother's sister) is a. one half (0.5) b. one quarter (0.25 c. one eighth (0.125) d.three quarters (0.75)