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Sex-linked Punnett Square

Punnett square showing classic results of T.H. Morgan's experiment revealing that some traits are sex-linked. In the early 1900's T.H. Morgan's experiments with fruit flies confirmed that genes are found on chromosomes and also that some traits are coded for by genes carried on the X chromosome (sex-linked traits). This Punnett square shows the results for his famous F1 cross of red-eyed hybrid females with red-eyed males. the 3:1 ratio of dominant red to recessive white eyes was Mendelian and expected. The surprising result was that - of the white eyed flies all were males (because males carry only one X chromosome and more easily express X-linked recessive traits).
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Title:
Sex-linked Punnett Square
Caption:
Punnett square showing classic results of T.H. Morgan's experiment revealing that some traits are sex-linked. In the early 1900's T.H. Morgan's experiments with fruit flies confirmed that genes are found on chromosomes and also that some traits are coded for by genes carried on the X chromosome (sex-linked traits). This Punnett square shows the results for his famous F1 cross of red-eyed hybrid females with red-eyed males. the 3:1 ratio of dominant red to recessive white eyes was Mendelian and expected. The surprising result was that - of the white eyed flies all were males (because males carry only one X chromosome and more easily express X-linked recessive traits).
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Credit:
Album / Science Source / MARTIN SHIELDS
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Image size:
4387 x 3301 px | 41.4 MB
Print size:
37.1 x 27.9 cm | 14.6 x 11.0 in (300 dpi)
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