There are three alleles at a gene determining eye color in a population of wild cats, the B allele (brown eyes) is dominant to both the G allele (green eyes) and the Y allele (yellow eyes). The G allele is dominant to the Y allele. In a population of 1000, there are 100 yellow-eyed cats, 400 green-eyed cats, and 500 brown-eyed cats. What is the expected frequency of the Y allele? O 0.32 0.01 O 0.71 O 0.55 O 0.10
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- There are three alleles at a gene determining eye color in a population of wild cats, the B allele (brown eyes) is dominant to both the G allele (green eyes) and the Y allele (yellow eyes). The G allele is dominant to the Y allele. In a population of 1000, there are 100 yellow-eyed cats, 400 green-eyed cats, and 500 brown-eyed cats. What is the expected frequency of the Y allele? 0.10 0.01 0.55 0.32 0.71In a certain population of frogs, 120 are green, 60 are brownish-green, and 20 are brown. The allele for brown is denoted GB, and the allele for green is designated GG. These two alleles are incompletely dominant to each other. What is the frequency of genotype GGGG in this population?Among a population of lizards inhabiting an arid habitat, the skin color is controlled by two alleles—B (brown skin color) that is dominant over b (green skin color). The green lizards comprise only 4 percent of the population whereas the brown lizards comprise the rest. Over a long period of time, increased rainfall in the area leads to transformation of the habitat, with growth of shrubs and small trees. The brown and green lizard numbers almost reverse with the green lizards approaching 81 percent of the total population. Calculate the allele frequency for the green skin color before and after the climate change occurred. Why did the brown lizard, which initially had greater relative fitness than the green lizard, reduce in number drastically? A. 2, 9; because relative fitness is dependent on environmental conditions B. 0.2, 0.9; because relative fitness is dependent on environmental conditions C. 0.2, 0.9; because the green lizard population acquired new…
- In Hereford cattle, the phenotypic expression of coat pattern called line-back (a white line down the center of the back, extending almost to the tail) is considered undesirable. The gene which causes line-back is recessive and autosomal. If 7 cows out of 100 cattle express this trait, what is the allele frequency for this trait? If the line-back cows are not included in the mating population (W22=0), how many line-back cows will be found in the next generation? (Assume 100 cows in the next generation.) can u ansewer the second questionSnow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies. A single gene controls coloration, where the dark (“blue”) allele (D) is dominant. A population of 30,012 geese includes 9236 dark individuals. Genetic testing reveals that 7636 of the 9236 dark individuals are heterozygous (Dd). What is the actual frequency of allele d? 0.819 0.181 0.565 0.653A total of 1000 members of a Central American population are typed for the ABO blood group. In the sample, 421 have blood type A, 168 have blood type B, 336 have blood type O, and 75 have blood type AB. Part A Use this information to determine the frequency of ABO blood group alleles in the sample. Recall that when considering genes with three alleles whose frequencies are represented by the variables p, q, and r, the sum of genotype frequencies resulting from trinomial expansion is: (p+q+r)² =p² + 2pq+q2+2pr+r²+2gr = 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.)Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies. A single gene controls coloration, where the dark (“blue”) allele (D) is dominant. A population of 30,012 geese includes 9236 dark individuals. Genetic testing reveals that 7636 of the 9236 dark individuals are heterozygous (Dd). What is the actual frequency of allele d? Group of answer choices A.) 0.819 B.) 0.181 C.) 0.565 D.) 0.653Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies. A single gene controls coloration, where the dark (“blue”) allele (D) is dominant. A population of 30,012 geese includes 9236 dark individuals. Genetic testing reveals that 7636 of the 9236 dark individuals are heterozygous (Dd). What is the actual frequency of allele D? A.) 0.819 B.) 0.181 C.) 0.435 D.) 0.347
- Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies. A single gene controls coloration, where the dark (“blue”) allele (D) is dominant. Researchers using genetic testing are able to determine the following numbers of individuals of each genotype in another population of geese: DD = 10576, Dd = 14503, dd = 4922. What is the actual frequency of genotype DD? A.) 0.483 B.) 0.164 C.) 0.352 D.) 0.734Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies. A single gene controls coloration, where the dark (“blue”) allele (D) is dominant. Researchers using genetic testing are able to determine the following numbers of individuals of each genotype in another population of geese: DD = 10576, Dd = 14503, dd = 4922. -What is the actual frequency of genotype Dd? -According to the Hardy-Weinberg equilibrium, what is the expected frequency of genotype Dd, dd -According to the Hardy-Weinberg equilibrium, what is the expected number of individuals of genotype DD?Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies. A single gene controls coloration, where the dark (“blue”) allele (D) is dominant. A population of 30,012 geese includes 9236 dark individuals. Genetic testing reveals that 7636 of the 9236 dark individuals are heterozygous (Dd). What is the actual frequency of genotype dd? Group of answer choices A.) 0.692 B.) 0.319 C.) 0.427 D.) 0.453