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SCIPAD - BIG IDEAS - BOOK 2
THE BASIS OF HEREDITY
4. A boy has Hitchhiker’s thumb, but neither of his parents have it. Complete the Punnett
square to show how this is possible.
Parent’s alleles and
5. Use a Punnett square to show how two Hitchhiker’s thumbed parents cannot produce a
non-Hitchhiker’s thumbed offspring.
Parent’s alleles and
6. Use a Punnett square to show how two purebred non-Hitchhiker’s thumbed parents cannot
produce a Hitchhiker’s thumbed offspring.
Parent’s alleles and
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