Cloning of Rat Kangaroo (PTK 2 ) Cells Following Laser Microirradiation of Selected Mitotic Chromosomes

Abstract
Mitotic chromosomes of rat kangaroo cells were irradiated with a green argon laser microbeam without prior dye sensitization. Deoxyribonucleic acid-negative chromosome paling was observed. The irradiated cells were isolated and cloned into viable populations.