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10. Two different mutant of Drosophilla gives a mutant black body color.  When these mutants are crossed all progeny have wild type color, It means mutation are (1) Codominant        (2) […]

9. In E. coli the complementation test is done by (1) Transformation (2) Obtaining merozygotes (3) Obtaining heterokaryons (4) Making them diploid Concept E. coli is normally haploid, so it has […]

8. Mutation at two different loci of the same gene X results in altered functions. These two mutated versions of gene X are called (1) alleles (2) Complementation group (3) […]

7. A recessive inherited disease is expressed only in individuals of blood group O and not expressed in blood groups A, B or AB. Alleles controlling the disease and blood […]

6. A newborn baby got mixed up with other babies in a hospital. If the mother is of O blood group and is Rh +veand the father is of AB […]

5. The newborn baby of a mother having blood group AB, Rh+ and father having blood group O, Rh–, got mixed withother babies in the hospital. The baby with which […]

In a hospital three babies were mixed up. The blood group of the babies were A. B and AB. In order to identify the parents of the babies, the blood […]

3. The ABO blood type tn human is under the control of autosomal multiple alleles. Colour blindness is recessive X-linked trait. A male with a blood type A and normal […]

2. A mother of blood group O has a group A child. The father could be of blood type (1) A or B or O.       (2) A only. (3) A […]

1. Blood group tupe A antigen is a complex oligosaccharide which differs from H antigen present in type O individual by the presence of terminal (1) Glucose          (2) Galactose (3) […]