객관식
How many generations are typically represented in a standard pedigree chart?
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13. Mendelian Genetics
Pedigrees
객관식
What pattern of inheritance is most likely shown in the pedigree if the trait appears in every generation and affects both males and females equally?
A
X-linked recessive
B
Mitochondrial inheritance
C
Autosomal dominant
D
Autosomal recessive
검증된 단계별 안내1
Examine the pedigree chart to identify the pattern of inheritance. Look for traits that appear in every generation, which is a key indicator of a dominant trait.
Consider whether the trait affects both males and females equally. If it does, this suggests that the trait is not sex-linked, as sex-linked traits often show a bias towards one gender.
Evaluate the possibility of autosomal inheritance. Autosomal traits are found on non-sex chromosomes and typically affect males and females equally.
Determine if the trait is dominant or recessive. A dominant trait will appear in every generation, whereas a recessive trait may skip generations.
Conclude that the pattern of inheritance is autosomal dominant, as the trait appears in every generation and affects both males and females equally.
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