# 2 a) Table 1 shows the results that Thomas Hunt Morgan got when his labcrossed Red-eyed fruit flies with White-eyed fruit flies. The crossing of theparental generation and F1 generation fruit flies looked like textbook Mendelianinheritance, but if the phenotypes were looked at with reference to the sex ofthe fruit fly, the phenotypic ratios were different from standard Mendelian ratios.Table 1OutcomeCrossExpected PhenotypesObserved PhenotypesF, = All RedF,- All RedP, Red 9 x P, White50% Red 975% Red 9 and &25% Red dF, Red 9 x F, Red d25% White ? and d25% White dYour answerCupport| Schoology Blog | PRIVACY POLICY | Terms of Use

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Description: # 2 a) Table 1 shows the results that Thomas Hunt Morgan got when his labcrossed Red-eyed fruit flies with White-eyed fruit flies. The crossing of theparental generation and F1 generation fruit flies looked like textbook Mendelianinheritance, but if

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# 2 a) Table 1 shows the results that Thomas Hunt Morgan got when his lab
crossed Red-eyed fruit flies with White-eyed fruit flies. The crossing of the
parental generation and F1 generation fruit flies looked like textbook Mendelian
inheritance, but if the phenotypes were looked at with reference to the sex of
the fruit fly, the phenotypic ratios were different from standard Mendelian ratios.
Table 1
Outcome
Cross
Expected Phenotypes
Observed Phenotypes
F, = All Red
F,- All Red
P, Red 9 x P, White
50% Red 9
75% Red 9 and &
25% Red d
F, Red 9 x F, Red d
25% White ? and d
25% White d
Your answer
Cupport
| Schoology Blog | PRIVACY POLICY | Terms of Use

Expert Solution

Step 1

T.H. Morgan with the help of this experiment demonstrated the X-linked pattern of inheritance. When a particular gene is present on the autosomes of male and female then in next generation they will produce an expected phenotype and ratio as Mendelian inheritance. When the genes are present on sex chromosomes then the inheritance is deviated from the typical Mendelian ratio. T.H. Morgan demonstrated this deviation from Mendelian ration through this experiment.

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