The request
“A recessive Labrador coat-color pedigree: two carrier parents have an affected son, an unaffected daughter, an affected proband daughter and an unaffected son. The affected daughter and a carrier partner have an affected son, an unaffected daughter and a carrier daughter.”
Then tryAdd another unaffected puppyMark the carrier partner as consultand
What is in this drawing
Read the decisions behind it.
01Both Generation I parents are carriers (Bb)
obligate inference when both unaffected parents have affected offspring.
02
Proband (II-3) is the affected female selected for the Generation III cross.
03II-5 carrier status inferred from III-3 carrier offspring
demonstrates how pedigree analysis confirms genotype.
Adapt for any autosomal recessive trait in livestock breeding by updating individual IDs and trait labels.
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