5 marksCell Division and Genetics
CSEC Human and Social Biology · January 2013 · Paper 2 · Question 5(b)(ii)
Haemophilia is a sex-linked disease; Mrs Trinbage is a carrier.
Complete the Punnett square for a cross between Mrs Trinbage (X^H X^h) and her husband, who is normal (X^H Y^H).
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