alleryWhich of these is listed as a Mendelian disorder?
ADown's syndrome
BTurner's syndrome
CKlinefelter's syndrome
DThalassemia
Answer & Solution
Correct answer: D. Thalassemia
1. Mendelian disorders are caused by alteration or mutation in a single gene.
2. Phenylketonuria, thalassemia, haemophilia and sickle cell anaemia are examples.
3. Thalassemia therefore belongs to this group.
4. Down's, Turner's and Klinefelter's syndromes are chromosomal rather than Mendelian.
_Source: syllabus Biology Ch4 'Principles of Inheritance and Variation'_
Keep practising Unit 5B: Mendelian Genetics & Inheritance
Browse all Unit 5B: Mendelian Genetics & Inheritance questions for AP Biology, or explore more Biology topics.
Related questions
Which one does not belong?Complete the monohybrid resultTrue or false: Mendel's peasDo the Mendel arithmeticSort each genotypeMatch each genetics term to its meaningMendel deduced that each parent in a monohybrid cross contributes:Mendel's 1865 publication reported crosses involving how many characteristics?