Scelta multipla
Which pedigree pattern is most consistent with an autosomal recessive mode of inheritance?
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2. Mendel's Laws of Inheritance
Pedigrees
Scelta multipla
This pedigree exhibits which of the following inheritance patterns?
A
Autosomal Dominant
B
Autosomal Recessive
C
X-linked Dominant
D
Autosomal Polymorphism
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Examine the pedigree chart to identify the affected individuals, which are represented by filled symbols.
Determine if the trait appears in every generation. If it does, it might suggest a dominant pattern. If it skips generations, it might suggest a recessive pattern.
Check if both males and females are affected equally. If so, it suggests an autosomal pattern rather than a sex-linked pattern.
Look for instances where two unaffected parents have an affected child. This is indicative of an autosomal recessive pattern.
Consider the possibility of carriers in the pedigree. In autosomal recessive inheritance, unaffected parents can be carriers of the trait, passing it to their offspring.
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