Q. No.The number of alleles, the genotypic combinations, and phenotypes in the ABO system are respectively:
1.
3, 6 and 4
2.
3, 4 and 6
3.
2, 3 and 4
4.
2, 3, and 6
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Thalassemia is inherited as a/an ____________ condition.
| 1. | Autosomal recessive | 2. | Autosomal dominant |
| 3. | Sex linked recessive | 4. | Sex linked dominant |
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The family pedigree of Queen Victoria shows a number of haemophilic descendants as she was:
| 1. | Affected by the disease |
| 2. | Carrier for the disease |
| 3. | Did not carry the allele for hemophilia |
| 4. | Was not a queen |
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A test cross is done to find out:
| 1. | Fitness of an organism |
| 2. | Genotype of a plant expressing dominant phenotype |
| 3. | The suitable parents for a Mendelian Cross |
| 4. | The hidden genotypic ratio of F2 phenotypes |
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Haemophilia is inherited as a/an __________ condition.
| 1. | Autosomal recessive | 2. | Autosomal dominant |
| 3. | Sex linked recessive | 4. | Sexlinked dominant |
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A genetic cross between homozygous individuals but with different alleles for a single gene of interest is called as:
| 1. | A reciprocal cross | 2. | Monohybrid cross |
| 3. | Dihybrid cross | 4. | Test cross |
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What can the possible blood groups of progeny whose father and mother are of A and B blood groups, respectively?
| 1. | A and B only | 2. | AB only |
| 3. | All except O | 4. | A, B, AB, and O |
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If individuals of genotype AaBbCc are intercrossed, how many different phenotypes can appear in their offspring?
| 1. | 3 | 2. | 6 |
| 3. | 8 | 4. | 9 |
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