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Danios make wonderful pet fish. Out of 10 fish in an initial…

Danios make wonderful pet fish. Out of 10 fish in an initial pet population, only 2 were wildtype. Use Hardy-Weinberg equilibrium to answer the questions below. Round all answers to 2 decimal places. A. What is the frequency of the dominant allele in the initial Danio pet population? [domfreqinitial] B. What is the frequency of the heterozygous genotype in the initial Danio pet population? [heterofreqinitial]   Over the course of 5 years the initial Danio pet population was permitted to breed freely. The resulting population consisted of 45 wildtype and 25 golden Danios. Answer the questions that follow. C. What is the frequency of the dominant allele in the 5 year Danio population? [domfreq5] D. Is the population evolving? Explain. [YN] E. If the population is evolving which of the criteria for Hardy-Weinberg were likely violated? [violate]   Remember the Hardy-Weinberg equations are: p + q =1 where p is the frequency of the dominant allele and q is the frequency of the recessive allele p2 + 2pq + q2 = 1 where p2 is the frequency of the homozygous dominant genotype, 2pq is the frequency of heterozygous genotype, and q2 is the frequency of the homozygous recessive genotype.

Zebrafish (Danio rerio), tropical freshwater fish, have been…

Zebrafish (Danio rerio), tropical freshwater fish, have been used as model organisms to study a number of biological phenomena. Two contrasting varieties of zebrafish are the wildtype and the golden mutant. These varieties contrast in pattern and pigmentation. Wildtype zebrafish have dark stripes and a grey background produced by melanophores that produce the pigment melanin. Golden zebrafish have a mutation to the gene (SLC24A5) which produces melanophores. These fish are hypopigmented since less melanin is produced as a result of the mutation, hence their golden coloration.  A previous study determined that crossing wildtype and golden zebrafish produces an F1 generation that are all similar to the wildtype, establishing the wildtype as the dominant phenotype. A. Use a Punnett square to predict the ratio of genotypes and phenotypes of the F2 generation produced from a cross between two of the F1 individuals mentioned above. Give appropriately labeled genotype and phenotype ratios as your answer. (2pts) B. Write a null and alternative hypothesis (in the correct format) for how the expected phenotype ratio will compare the observed ratio. (2pts) C. Use a χ2 analysis to determine if the number of observed fish of the 1000 fish sample given below is significantly different from the expected value. Write a statement summarizing your conclusion. (4pts)   Remember the equation for  

Darius and Mariah developed an experiment to test the effect…

Darius and Mariah developed an experiment to test the effectiveness of various antacids. The duo used 0.1M HCl to determine the volume of acid each antacid could neutralize. Use the data to help answer the questions. Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Trial 6 Maalox Maximum Liquid 40.25 33.5 31.5 31.25 21.8 22.1 Equate Regular Liquid 1.0 0.5 1.0 0.9 1.0 0.85 Equate Maximum Liquid – Mint 2.3 2.25 3.05 3.0 3.25 2.55 Equate Maximum Liquid – Cherry Table 1- Volume in mL of 0.1M HCl needed to reach pH 7.    A. Calculate the average

Cystic fibrosis is a genetic disorder in homozygous recessiv…

Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. If 9 in 10,000 newborn babies have the disease, what are the expected frequencies of the dominant (A1) and recessive (A2) alleles according to the Hardy-Weinberg model?