Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Medaka fish native to Japan have 24 pairs chromosomes, and medaka fish native to China have 23 pairs of chromosomes. In which population of medaka fish would you expect to see more genetic variation in the progeny of a cross?
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- Suppose that goats have one gene that codes for color, where A is brown and a is white. The goats also have another gene that codes for height, where B is tall and b is short. If these two genes are unlinked, what is the probability that a cross between Aa Bb × Aa bb parents will produce two out of six offspring that are brown and short? Provide answer as a decimal, rather than as a percentage.arrow_forwardWe have crossed true-breeding flies today. Wild type to mutant. Their phenotypes were wt and vg se. (Let’s not worry about males and females for now, just assume both genes are autosomal, which is normal in a Mendelian experiment). The results of a cross are phenotypes. I will be asking you for numbers or a ratio of phenotype numbers you expect to see in the offspring from this cross. To answer this, you’ll need to start with the genotypes of parents, then write their gametes, then write the offspring genotypes, then get the phenotypes based on them. Predict the results of this cross: In case both mutations are recessive; In case both mutations are dominant; In case vestigial wings are recessive and the sepia eyes are dominant.arrow_forwardIn northeast Kansas there is a creature known as a wildcat. It comes in three colors, blue, red, and purple. This trait is controlled by a single locus gene with incomplete dominance. What would be the genotype and phenotype ratios of the offspring if a blue wildcat were crossed with a purple one? Show all work.arrow_forward
- Explain the species in which a person can expect to see more genetic variation among the progeny of cross.arrow_forwardImagine you cross two closely related plant varieties: Maize and teosinte. You hypothesize that different alleles at just 5 genes are responsible for all the trait differences between the two plants. You take two inbred parent lines and cross them together to produce an F1 and then cross two F1 individuals together to produce F2 offspring. What proportion of the offspring do you expect to look exactly like each of the parent lines if your hypothesis is correct? Please show work using punnet squares.arrow_forwardDefine the terms allele, chromosome, and gene and explain how they relate to one another. Develop an analogy between these terms and the process of using a street map to locate a new apartment to live in next year (i.e., consider which term is analogous to a street, which to a type of building, and which to an apartment floor plan).arrow_forward
- If you were to cross a true breeding brown mouse with a true breeding white mouse, and all the offspring are brown, what could you conclude about the brown allele relative the white allele?arrow_forwardSppose a white-furred rabbit breeds with a black-furred rabbit and all the offspring have a phenotype of gray fur. What does the gene for fur color in rabbits appear to be an example of? Explain your answer. 13 A man with AB blood has children with a woman with type B blood. The woman's mother had type o blood. Cross the man and woman to determine the possible offspring. Man Genotype Phenotype Gametes Woman Genotype Phenotype Gametes Mother Genotype Phenotype Gametes Punnett square Personaluse only, do notreproduce garciato187@Studenciacca.edu notieproouce. onal Sudentlacod.edu Genotype ratio: Phenotype ratio: 14 In certain fish, red and blue fish, when mated, create offspring with a patchwork of blue and red scales. Cross a blue fish and a fish with patchwork red/blue scales. Blue Fish Genotype Phenotype student.lacoCd.edu Gametes Patchwork Fish Genotype Phenotype Gametes Punnett square o not reproduce Personal use oniy do garcialo187 studenlacca edu notreproduce Genotype ratio:…arrow_forwardA test cross is performed on a fly population to examine three linked genes. The most frequent phenotypes were ABC and abc; the least frequent ones were aBC and ABc. What was the genotype if the heterozygous individual and the correct gene orderarrow_forward
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