If the pedigree below is for an autosomal recessive characteristic, which individuals are definitely heterozygous?
A) I-1, I-2, II-2, II-4, II-5
B) I-1, I-2, I-4, III-1
C) I-1, I-2, II-4, II-5, III-1
D) II-2, II-4, II-5, II-3
E) II-2, II-4, II-5, III-1

Question

If the pedigree below is for an autosomal recessive characteristic, which individuals are definitely heterozygous? 
A) I-1, I-2, II-2, II-4, II-5 
B) I-1, I-2, I-4, III-1 
C) I-1, I-2, II-4, II-5, III-1 
D) II-2, II-4, II-5, II-3 
E) II-2, II-4, II-5, III-1

Quizplus · Accepted Answer

The Answer of If the pedigree below is for an autosomal recessive characteristic, which individuals are definitely heterozygous? 
A) I-1, I-2, II-2, II-4, II-5 
B) I-1, I-2, I-4, III-1 
C) I-1, I-2, II-4, II-5, III-1 
D) II-2, II-4, II-5, II-3 
E) II-2, II-4, II-5, III-1

If the Pedigree Below Is for an Autosomal Recessive Characteristic