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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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lindsaykinz lindsaykinz
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In which order should the following steps be done to identify a quantitative trait locus (QTL) gene that contributes to the phenotypic variation in a trait?

I.DNA and protein sequence analyses are used to determine if there is a correlation with 
phenotypic variation
II.Each of the offspring is individually backcrossed with the same parent, usually the one 
expressing the phenotype more strongly
III.Lod scores are calculated for each genetic marker to find QTLs
IV.The genotype of the progeny at genetic markers located every 5-10 cM is determined for each 
introgression line
V.Two individuals which exhibit the extremes of a specific phenotype are crossed
VI.DNA sequence variants among introgression lines are analyzed to find candidate genes


▸ V, II, IV, III, VI, I

▸ I, V, III, II, IV, VI

▸ V, IV, II, III, I, VI

▸ I, II, IV, III, VI, V

▸ V, IV, III, II, VI, I
Textbook 
Genetic Analysis: An Integrated Approach

Genetic Analysis: An Integrated Approach


Edition: 3rd
Authors:
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calebmachariacalebmacharia
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V, II, IV, III, VI, I
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lindsaykinz
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