The following pedigree shows the inheritance of Tay-Sachs in a family. Tay-Sachs is a recessive disorder that causes lysosomes to be unable to break down waste products in the cell. These wastes build up in brain cells and cause damage and eventual death. Indicate the genotypes for each of the family members.

Question

iosangel · Answer

Like this? https://prnt.sc/q4g6um

Nnesha · Answer

where is the given pedigree ??

Nnesha · Answer

The grey box represents the disorder.

Nnesha · Answer

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can you write possible alleles in each box?

iosangel · Answer

The pedigree was the same thing posted but empty

Nnesha · Answer

Ohh okay.

Nnesha · Answer

yeah so grey box represents the disorder. The allele for grey boxes  cannot match the genotype of the parent.

Nnesha · Answer

If T(normal allele)
t(recessive allele)
then
Tt= carrier
TT=dominant 
tt= affected