Dido_bylka
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Attachment 806508Answer.
q) show all the possible outcomes
when both parents are heterozygous for cystic fibrosis.
how did they get 6 offspring and not 4 ?
Attachment 806512
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Milliecuthbert
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(Original post by Dido_bylka)
Attachment 806508Answer.
q) show all the possible outcomes
when both parents are heterozygous for cystic fibrosis.
how did they get 6 offspring and not 4 ?
Attachment 806512
They got 6 instead of 4 because it asks for ALL of the possible outcomes. Due to the parents being heterozygous and not homozygous they can have:
~Male Cystic Fibrosis & female Cystic Fibrosis
~Male carrier & female carrier
~Unaffected male & Unaffected female
If both parents were homozygous or just one of them homozygous then the results would be different due to the fact that Cystic Fibrosis is a recessive genetic disorder and not a dominant one.

I hope that this helps ☺️
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Dido_bylka
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thanks babeee <3
(Original post by Milliecuthbert)
They got 6 instead of 4 because it asks for ALL of the possible outcomes. Due to the parents being heterozygous and not homozygous they can have:
~Male Cystic Fibrosis & female Cystic Fibrosis
~Male carrier & female carrier
~Unaffected male & Unaffected female
If both parents were homozygous or just one of them homozygous then the results would be different due to the fact that Cystic Fibrosis is a recessive genetic disorder and not a dominant one.

I hope that this helps ☺️
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