TWO PICTURES WHO DO YOU THINK THEY ARE pedigrees in the ques

WHO DO YOU THINK THEY ARE? pedigrees in the questions below, indicate the pattern of inheritance and the genotypes of individuals in the direct blood line between generations. Note: more than one pattern may be possible for a single pedigree; in this case you should list both as options and support your statement with the genotypes necessary to support each potential method of inheritance. Question #1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 10 19 20 21 10 11 12 13 14 15 16 17 18 Mode of Inheritance/Inheritance Pattern: Genotypes 13 V-9 22 IV-1 V-5 II-3 IV-2 ll-4, V-9 IV-5 IV- 6

Solution

Q1). Autosomal recessive triats.

Autosomal recessive triatd normally appear with equal frequency in both sexes and appear only when a person inherits two alleles for the triat, one from each parent.

Most parents of affected offsprings are heterozygous and unaffected,thus the triat seems to skip generations.

Genotypes:

II-2= Aa

II-3=aa

II-4=Aa

III-1=Aa

III-2=Aa

III-13=Aa

IV-1=Aa

IV-2=Aa

IV-5=aa

IV-6=AA

IV-9=aa

V-5=aa

V-9=AA