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Name: . Two black guinea pigs were mated and over several yearsproduced 29 b
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Description: . Two black guinea pigs were mated and over several yearsproduced 29 black and 9 white offspring. Explain theseresults, giving the genotypes of parents and progeny

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Biology

. Two black guinea pigs were mated and over several yearsproduced 29 black and 9 white offspring. Explain theseresults, giving the genotypes of parents and progeny

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter7: The Cellular Basis Of Inheritance

Section: Chapter Questions

Problem 12CTQ: Explain the advantage that populations of sexually reproducing organisms have over asexually...

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genes relies on the existence of ovoD, a dominant female sterile mutation of the ovo gene, whichis located near the middle of the acrocentricDrosophila X chromosome. Females that are ovoD/ovo+ are sterile; ovoD-containing germ-line cellscannot produce eggs.a. Mutations in gene X are recessive lethals, so homozygotes for these mutations do not develop intoadults. Explain how researchers could use the ovoDmutation in a mitotic recombination experiment todetermine (i) whether or not females might supplythe RNA or protein product of gene X to the eggsthey make in their ovaries, and (ii) whether thismaternally supplied product is needed for properdevelopment of their progeny. Where in the genome would gene X need to be located for thisapproach to work?b. The ovoD mutant gene has been cloned, so genomicDNA for this mutant gene is available. How couldyou use this cloned DNA to determine whether any embryonic lethal mutation located anywhere in thegenome was an allele of a maternal effect…
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