Multiple Choice
How can a genetic counselor use a pedigree to help clients understand the inheritance of genetic diseases?
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2. Mendel's Laws of Inheritance
Pedigrees
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Which type of pedigree is specifically used to track kinship through the father's family line?
A
Mitochondrial pedigree
B
Y-linked pedigree
C
Autosomal dominant pedigree
D
X-linked pedigree
Verified step by step guidance1
Understand that pedigrees are diagrams used to track inheritance patterns of specific traits or genetic markers through families.
Recognize that different types of pedigrees focus on different modes of inheritance: mitochondrial pedigrees track maternal lineage, X-linked pedigrees track genes on the X chromosome, and autosomal pedigrees track genes on non-sex chromosomes.
Recall that the Y chromosome is passed exclusively from father to son, so a pedigree tracking kinship through the father's family line focuses on Y-linked inheritance.
Identify that a Y-linked pedigree specifically traces traits or markers inherited through the paternal line because only males carry and pass on the Y chromosome.
Conclude that the pedigree type used to track kinship through the father's family line is the Y-linked pedigree.
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