This would be a recessive disease.
Father is dd
Mother is Dd (has to be because one child has the disease)
Parents cross is dd x Dd which gives rise to Dd (0.5) and dd (0.5). Each time they have a child they have a 50% chance of the child having the disease. In their case, only one of their 3 children is dd. The others though are carriers!
The three nose configuration found on long nose pliers are NEEDLE, CHAIN AND ROUND
Long nose pliers may or may not have side cutters and they come in miniature and small sizes. Long nose pliers are designed for electrical work, it is used for cutting small wire gauges.
Hemophilia is a genetic disorder that causes a protein required for normal blood clotting to be missing. The mode of inheritance for hemophilia is sex-linked.
Answer: a. sex-linked
