Questions
BIOL_2004_81774_202509 Genetics Final Exam- Requires Respondus LockDown Browser
Single choice
A testcross is performed on an individual who is heterozygous for three linked traits. What phenotypes concerning the three genes will be found most often among the progeny?
Options
A.The three dominant phenotypes
B.Combinations that indicate double crossovers within the test individual's genotype
C.Combinations that indicate single crossovers within the test individual's genotype
D.Combinations that indicate no recombination within the test individual’s genotype
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Step-by-Step Analysis
Question restatement: In a testcross involving an individual heterozygous for three linked traits, which progeny phenotypes occur most frequently?
Option 1: The three dominant phenotypes. While parental phenotypes are often the most common, this choice assumes the dominant traits align together in the parental haplotype. If the heterozygote’s arrangement is the opposite (recessive alleles in the parental chromosome), the most frequent ph......Login to view full explanationLog in for full answers
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