Sex-Linked Pedigrees Worksheet
Explore the inheritance patterns of sex-linked traits through pedigree analysis with this Grade 10 Science worksheet.
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Sex-Linked Pedigrees Worksheet
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Carefully read each question and answer to the best of your ability. Refer to the provided pedigree charts to answer the questions about sex-linked inheritance patterns.
The pedigree below shows the inheritance of a sex-linked recessive trait.
1. Based on the pedigree, is the trait X-linked or Y-linked? Explain your reasoning.
2. What is the genotype of individual II-1?
3. What is the probability that individual III-2 is a carrier for the trait?
4. Which of the following statements is true regarding X-linked recessive inheritance?
Affected fathers pass the trait to all their daughters.
Affected mothers pass the trait to all their sons.
Affected individuals are usually male.
Both a and c.
5. In X-linked dominant inheritance, an affected father will pass the trait to all of his .
6. A carrier female for an X-linked recessive trait has a chance of having an affected son.
7. Males are more frequently affected by X-linked recessive disorders than females.
True
False
8. Y-linked traits are passed from fathers to all of their sons.
True
False
9. Explain why males cannot be carriers for X-linked recessive traits.
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