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Help me with question 24 giving people brainlist

Help Me With Question 24 Giving People Brainlist class=

Sagot :

astar9

Answer:

Huntington disease is a dominant autosomic disease so it presents either in heterozygosity (Aa) or in homofzigosity (AA)

observing the pedigree, the two parents have the Aa genotype so by making the punnet's square we have as possible genotypes: AA, Aa, Aa, aa. So the chance to get the disease is 25%