Cytoplasmic Inheritance Heredity 2 Lethal Genes 2 Blood group 1 Chromosom abereation 1 Chromosomal Aberrations 1 Chromosome Maps 1 Chromosomes 1 Crossing Over 1 DNA Cloning 1 DNA Synthesis 1 Gene Expression 1 Gene Mutatins 1 Genetic Engineering 1 Genetic code 1 Inheritance 1 Microbial Genetics 1 Multiple access 1 Polyploidy 1 Sex Linkage 1