The difference between norm of reaction and expressivity is that
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organisms must have the same genotype for one individual gene to measure expressivity (for example: heterozygous for polydactly) |
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organisms must be 100% genetically identical to investigate norm of reaction (for example: bacteria grown from a single colony that are clones of each other) |
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neither of these is correct |
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both are correct |
Ans)Both the above statements are correct.
This is because to test expressivity the genotype of organisms must be similar and then how their phenotypes are seen is expressivity.While norm of reaction describes a pattern of phenotypic expression of a single genotype across a range of environments,so the organisms must be 100% genetically identical.
The difference between norm of reaction and expressivity is that Options: organisms must have the same...
same options for the rest of the question
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Multiple Choice
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it's the same question with different situations.
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You have three genes on the same chromosome - A, B and C. Each gene has two alleles in a dominant/recessive relationship. For these genes the homozygous recessive has the mutant phenotype for that trait, the dominant phenotype = wild type for that trait. allele A is dominant to a; phenotype a = mutant for trait a; phenotype A = wild type for trait A allele B is dominant to b; phenotype b = mutant for trait b; phenotype B...
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