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53. In scanning Simple Sequence Repeats (SSR) primers are used against (1) Random sequence (2) Repetitive sequence (3) Flanking region of repetitive sequence (4) Conserved region of exon of gene […]

Centromere positions can be mapped in linear tetrads in some fungi. A cross was made between two strains a b and a+ b+ and 100 linear tetrads were analysed. The […]

51. Fertilization between two mating types (Pl and P2) of Neurospora, led to a diploid ascus cell, which gave rise to ascus containing 8 haploid ascospores. A set of DNA […]

The following table summarizes the result of a cross between two strains of Neurospora having the alleles D and d, respectively. The table shows the different patterns of octad arrangement […]

49. In Neurospora a cross between the genotypes ‘A’ and ‘a’ results in an ascus with ascospores of genotypes as shown below: Statements A to D areevents that could have […]

48. Segregation of alleles can occur either at anaphase I or anaphase II of meiosis. Which one of the following is an ideal model system for identifying the stage at […]

47. A pedigree shown below depicts that the individual l-I is heterozygous for a dominant disease allele D and for molecular markers MI/M2. The paternal molecular markers present in the […]

The table given below shows the Lod score values of three different pairs of genes studied for assessing if they are linked pairs: Gene Pair ‘1’ Gene Pair ‘2’ Gene […]

45. DNA markers have enormous potential to improve theefficiency and precision of conventional animal breedingvia marker-assisted selection (MAS). Among thefollowing which would be most suitable marker forselection of animals with […]

44. Molecular marker cannot be utilized for (1) Mapping of genes (2) Identifying the clones (3) Identifying the locus of gene on chromosome (4) Identifying the expressed product Molecular markers […]