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91. A panel of six hybrid cell lines, each containing a different subset of human chromosome, was examined for the presence of the gene product as shown below: Cell        Gene            […]

Somatic cell hybridization is used to assign a gene to aparticular chromosome. When two cell lines from twodifferent species are fused, they form a heterokaryonwhich tends to Jose chromosomes as […]

89 Interspecific somatic hybridization are often followed (1) Fusion of paternal chromosome (2) Fragmentation of Paternal chromosomes (3) Selective elimination of one of parental chromosome (4) Fusion of nuclei Interspecific […]

88. During fusion of Rat and Human cell it was found that chromosomes of one species was selectively eliminated, this had opened new doors to study (1) Transgenic study (2) […]

87. use of inactivated Sendai virus and PEG for fusion of two cells has proved very beneficial in studies for- (1) Transgenic (2) Tissue culture (3) Physical mapping (4) Recombinant […]

86. The somatic cell hybridization of human and mouse cell can be effectively mediated by (1) CaCl2 treatment (2) Heat Shock (3) Inactivated Sendai virus (4) Enzymatic treatment Somatic cell […]

The following scheme represents deletions (1-4) in the rll locus of phage T4 from a common reference point: (The bars represent the extent of deletion in each case) Four point […]

84. The location of six deletion (Shows as solid line underneath the chromosomes) has been mapped to the Drosophila chromosome as shown in the diagram given below: The recessive mutations […]

The locations of five overlapping deletions have been mapped to a Drosophila Chromosome as shown below (Horizontal lines in the above figure indicate the deleted regions) Recessive mutations a. b. […]

The following is a schematic representation of region(showing six bands) of the polytene chromosome ofDrosophila, along With the extent of five deletions (Del1 to Del5): Recessive alleles a, b. c. […]