Question

kalya Genetics Spring 2020 <Mendellan Genetics Problem 3.22 Draw all possible conclusions concerning the mode of inheritance of the trait expressed in each of the following limited pedigrees. (Each case is based on different tralt.) DO OOOO Select the two correct statements. The trait is autosomal recessive. The trait is autosomal dominant. O l-1 and 1-2 are heterozygous. 1-1 and 1-2 are homozygous. Submit Request Answer Part C OTO odbor Select the two correct statements. The trait is autosomal dominant. The trait is autosomal recessive 1-1 and 1-2 are homozygous. 1-1 and 1-2 are heterozygous.

Answer 1

1. Here, the correct option is :

The trait is autosomal recessive.

I - 1 and 1- 2 are heterozygous.

Explanation -

Let ' À be the dominant allele and lect Q? be the corresponding recessive allele. Then, the given pedigree will be: (Given that the trait is autosomal recessive Аа — Аа AAlAa n pa a Alaa AA/A AA/Aa AA/A a 'affected individual

C. Here, the correct option is :

The trait is autosomal recessive.

I - 1 and 1- 2 are heterozygous.

Explanation -

Here Let 'B? be the dominant allele and 'b' be the corresponding recessive allele. Then, the given pedigree will be: (Given that the trait is autosomal recessive) Accese Bь — Вь eejéb b) BB/Bb Bb Bb во[вь вовь elev celou BB/ affected individual

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