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SCIPAD - BIG IDEAS - BOOK 2
THE BASIS OF HEREDITY
4. A girl has attached ear lobes, but neither of her parents do. Complete the Punnett square
to show how this is possible (circle the combination of alleles that gives the girl attached
earlobes).
Parents’ alleles and
5. Use a Punnett square to show how two attached ear lobed parents cannot produce a
free ear lobed child.
Parents’ alleles and
6. Use a Punnett square to show how two purebred free ear lobed parents cannot produce
an attached ear lobed offspring.
Parents’ alleles and
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