You are a breeder of Yorkshire hogs Your hogs have been plag

You are a breeder of Yorkshire hogs. Your hogs have been plagued with a recessive genetic defect that is not lethal, but is undesirable. You mate a boar to a carrier (heterozygous) sow and obtain a litter of 12 normal pigs (none exhibit the genetic defect). What should you conclude? We cannot conclude anything at all. We need to produce more offspring. We should conclude that the boar is not a carrier of the recessive allele for this genetic defect We know with 100% certainty that the boar is homozygous dominant. We should conclude that the boar is a carrier of the recessive allele for this genetic defend.

Solution

Answer : When cross was done between boar and carrier sow, all litter were normal that means they are carrier of recessive allele for this genetic defect hence answer d is correct