Expression of drug resistance markers by spheroplasts ofMycobacterium smegmatis after fusion Chanchal SadhuK. P. Gopinathan OriginalPaper Pages: 67 - 73
Genome Instability in interspecific cell hybrids II. Aminopterin resistance and gene amplification in lines arising from fusions of cells from divergent mammalian species J. M. WatsonL. M. MckayJ. A. Marshall Graves OriginalPaper Pages: 75 - 86
Genomic instability in interspecific cell hybrids III. Repression of Colcemid resistance in hybrids suggests preferential β-tubulin expression Paula A. ZelescoJennifer A. Marshall Graves OriginalPaper Pages: 87 - 94
Screening ofMedicago wild species for callus formation and the genetics of somatic embryogenesis P. D. WaltonD. C. W. Brown OriginalPaper Pages: 95 - 100
Founder effects explain the distribution of the HLAA1-B17 but not the absence of theA1-B8 haplotypes in India R. M. Pitchappan OriginalPaper Pages: 101 - 111
Decreased extrachromosomal fixation of chimeric plasmid in strain N19 ofHaemophilus influenzae Rd. Vasudha P. JoshiN. K. Notani OriginalPaper Pages: 113 - 119
Cloning of a positive regulatory element involved in nitrogen fixation inAzotobacter vinelandii M. Amarender ReddyH. K. Das OriginalPaper Pages: 121 - 127
Detecting and comparing the direction of gene-frequency gradients Guido Barbujani OriginalPaper Pages: 129 - 140