Question

Confused on how to read it. all four please

*960 OOO OO O Autosomal dominant Most likely autosomal recessive O Most likely X-linked recessive O Autosomal recessive O X-linked recessive O Either autosomal recessive or X-linked recessive QUESTION 4 (Pedigree Tree What is the genotype of Generation individual 1? O AA A O O Either AA or As O XAXA Oxxo O Ether AXA XA O Xy Oxy o Carnot determine with the information provided QUESTION 5 (Pedigree Tree What is the genotype of Generation individual 1? O A OA OM O Ether AA or AB OXAXA Oxxo O Ether XxA or Ayam O XAY O xey o Cannot determine with the information provided QUESTION 6 (Pedigree Tree What is the genotype of Generation Individual ? O AAO A O O Ether AA or As O XAXA OxAxa o Ether AyA or XAxa O XAY O xey o Cannot termine with the information provided

Answer 1

Answer-

1) The trait is Autosomal recessive.

Unaffected parents have affected offspring (so, definately recessive)

Affected mother (II-6) has unaffected sons (III-6, 9, 10).So, it is not X-linked recessive trait.

4) genotype of I-1 is Aa

5) genotype of II-1 is aa

6) genotype of III-8 is Aa

The explanation is given below:

H H 99 -ow 3 7 8 O 10 11 2 3 4 5 8 9 10 11 12 13 14 (I, I, II designate generations) O Normal female ; Normal male Affected female; 2 → Affected male Affected offspring (II-1, 6) have normal parents (I-1,2) Affected mother (I-6) has normal offspring ( TI - 6,7,8,9,10), specifically normal sons (II - 68, 9, 10) So, the trait is Autosomal recessive. question 4 It is affected; genotype aa. Both of her parents are normal. Both parents should be carrier (Aa) Senotype of Int is Аа | Aa X Aa .. AA 2 Aa aa aa II-6 I 7 аа ХАА L suestion 5 It is affected. Genotype of Ind is Question 6 I-6 is a son of I-6, II-7 II-6 is affected; genotype aa But I -6 is normal. (either AA or Aa) III - 6 gets one "a" allele from his affected mother (II-6) . Genotype of 1-6 is Αα I-8 is Aa as she also gets one "a" allele from her mother. I-6 Aa