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71. An analysis of four microsatellite markers was carried out in a family showing a genetic disorder. The results are summarized below Based on the above, which ot the markers […]

70. Sickle cell anemia is a recessive genetic disease caused due to a point mutation in the 6th codon abolishing one of the MspIIendonuclease digestion site present in the ß-globin […]

69. In normal individuals, there are three Mstll restrictionsites. two flanking the ß-globin gene and one within thegene. In individuals affected by a disease, a singlenucleotide polymorphism in the ß-globin […]

68. The following picture represents a gel profile of a pair of DNA markers observed P1 and P2, their F1 progeny and F2 progeny. Four different profiles were observed in […]

67. The AFLP technique generates polymorphic DNA fragments that are generally scored as dominant markers. However, a pair of DNA fragments (say ‘a’and ‘b’) generate by AFLP can be termed […]

66. The following represents selected AFLP bands (l to V) observed in parents (P1 and P2), Fl progeny and 20 doubled haploid (DH) progeny developed from the F1. DH are […]

64. Doubled haploids (DH) are plants derived from single immature pollen and doubled artificially to form diploids. A DH population was created from progeny derived from a cross between two […]

65. The figure below represents a profile of DNA markers in two parents (Pl and P 2), progeny (F1) from a cross between P1 and P2 and that of gametes […]

63. In 1990, Bhattacharya et al identified that the wrinkled seed character of pea as described by Mendel is caused by a transposon — like insertion in a gene encoding […]

62. Alleles A, a, B and b can be distinguished on the basis of their mobility on an agarose gel. These genes are present on the same chromosome. In the […]