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- About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene. Assuming random mating in the population with respect to colour blindness. a) What percentage of women would be expected to be colour blind? b) What percentage of women would be expected to be heterozygous? c) What percentage of men would be colour blind in the next generation?1. Widow's peak allele (W) is dominant to straight hair line (allele w). In a population of 1000, there are 760 persons with widow's peak. a. What is the frequency of genotype WW? b. What is the frequency of the heterozygotes?3.) In a population that is in Hardy-Weinberg equilibrium, 45 % of the individuals arehomozygous recessive for a certain trait. In a population of 15,500, how many of the individualswill be;a. homozygous dominant individualsb. heterozygous individuals
- 1. What would be the probability of an allele going to fixation after one generation of drift in a finite diploid population of size N? 2. What would the probability of an allele being purged from a population after one generation of drift in a finite diploid population of size N?1. Early hunter-gatherers were interbreeding with colonists who brought agriculture from the Middle East. Did genetic adaptations of agriculturalists, such as the ability to digest milk as an adult, might have undergone genetic recombination with genetic adaptations of hunter-gatherers to potentially create a better adapted population in terms of survival and reproductive success? Why or why not?1. The ability to taste the compound PTC is controlled by a dominant allele T, while individuals homozygous for the recessive allele (t) cannot taste PTC. In a population consisting of 500 individuals, 347 are tasters and 153 are non-PTC tasters. Calculate the frequency of the T and t alleles in this population, and frequency of the genotypes.(Please train yourself to use the Hardy-Weinberg equation.)To present your answers, follow the format in the picture below.
- About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene. Assuming random mating in the population with respect to colour blindness b) What percentage of women would be expected to be heterozygous?Applying the Hardy-Weinberg equilibrium. 81% of the individuals are homozygous for a recessive allele. What percentage of the individuals would be expected to be heterozygous for this locus in the next generation?3. a. Why are most populations not in Hardy Weinberg Equilibrium? b. There is an ancient village population of humans. We know very little about this population. How can we use genetics to determine if the societal system of the village was matrilocal or patrilocal? c. There was variation in a rat phenotype (coat color.) The coat colors ranged from dark color coats to light color coats. As the rats migrated into the basements of campus, the light color rats were more likely to be caught by the campus cat. Over time, the basement rat population shifted to entirely dark color coats. This is an example of what kind of selection? d. Explain how a genetic bottleneck could lead to higher susceptibility of a disease, such cancer, in that population.
- The inability to fold your tongue is an autosomal recessive trait. Assuming that the population being studied is in Hardy-Weinberg equilibrium with respect to this particular gene, what percentage of the population would be expected to be heterozygous carriers if 9% of the population is known to be homozygous recessive?1. For a particular rodent, black fur (B) is dominant over brown fur (b), and a long tail (L) is dominant over a short tail (l). Create a Punnett square that shows the genotypes of all the possible offspring that could result from the breeding of 2 rodents that are both heterozygous for both traits. Include the percentage/ratio of occurrence for each phenotype.1. Honeybee workers undergo a resistant behavioral pattern called hygienic behavior. Susceptible worker genotypes failed to remove the diseased larvae, so that the disease spread easily throughout the honeybee colony. a) When inbred lines of resistant genotypes were crossed with inbred lines of susceptible genotypes, the F1 worker bees showed unhygienic behavior.Is hygienic behavior dominant or recessive in these bees? Why?