Lesson covers how alleles found on the X and Y chromosomes cause sex-linked traits. Examples of colourblindness, haemophilia and tortoiseshell cats are included. Students will learn why Sex-linked disorders are more prevelant in males, and why a male child cannot inherit a sex-linked disorder from their father.
Resource includes starter recall quiz, clear specification links, plenty of opportunity to practice genetic crosses, past exam question practice and extra reading links.
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