- 1(current)
Q. No.A couple comes to you for genetic counselling. Both have a sister affected with albinism but all other members are normal. Your advice regarding the risk of their child being affected with albinism would be:
| 1. | They must both be heterozygotes so their risk of having an affected child is ¼. |
| 2. | They might both be heterozygotes so they should get tested to see if they carry the disease allele or not. |
| 3. | Since neither one of them is affected, they are not at risk of having an affected child. |
| 4. | You can't give them any firm answers because you don't know their genotypes. |
The inheritance of the trait shown in the given pedigree cannot be a/an:
| I. | Autosomal dominant disorder |
| II. | Sex-linked dominant disorder |
| III. | Holandric disorder |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II, and III |
The inheritance of the trait shown in the given pedigree is best explained as a/an:
1. Autosomal dominant disorder
2. Autosomal recessive disorder
3. Sex-linked dominant disorder
4. Sex-linked recessive disorder
On the basis of information given in the pedigree, if II 3 marries a hemophilic man, what is the probability that her first child will be normal?
| 1. | 1/4 | 2. | 1/2 |
| 3. | 3/4 | 4. | 0 |
The inheritance pattern of the trait shown in the given pedigree is most likely:
| 1. | Autosomal recessive | 2. | Sex-linked recessive |
| 3. | Autosomal dominant | 4. | Sex-linked dominant |
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| 1. | Autosomal recessive | 2. | Autosomal dominant |
| 3. | Sex-linked recessive | 4. | Sex-linked dominant |
| 1. | Autosomal recessive | 2. | X-linked recessive |
| 3. | Autosomal dominant | 4. | X-linked dominant |
Study the pedigree given below where filled symbols are individuals affected by a sex-linked dominant genetic disorder:
Which of the following most strongly supports the mode of inheritance given?
1. The progeny of II-1 and II-2 are not affected
2. All female progeny of II-5 are affected
3. 50% male and 50% female progeny of I-1 and I-2 are affected
4. The disorder is seen in all generations
- 1(current)
Q. No.
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