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Heredity: Inheritance and Variation of Traits

Quick questions on Sex-linked traits and pedigree analysis - North Carolina Biology EOC LS.Bio.7

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Explain why a female can be a carrier of an X-linked recessive trait but a male usually cannot. [2]
What is q2?
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In a pedigree, two unaffected parents have an affected child. State whether the trait is dominant or recessive and why. [2]

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