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    Expected phenotypes of offspring from a heterozygous male with attached earlobes

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    I am having trouble with this type of setup not sure about how to set up Punnett square to answer questions concerning homozygous vs heterozygous

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    If we Denote that haing free earlobes is dominant to attached earlobes.
    and having free earlobes is 'A' , having attached earlobes 'a'

    the man-free earlobes-heterzygous(means he has one allele that is for free and one allele that is