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What (who) is P1-derived artificial chromosome - definition
P1-derived artificial chromosome
IN GENOMIC RESEARCH
A P1-derived artificial chromosome, or PAC, is a DNA construct derived from the DNA of P1 bacteriophages and Bacterial artificial chromosome. It can carry large amounts (about 100–300 kilobases) of other sequences for a variety of bioengineering purposes in bacteria.
Yeast artificial chromosome
GENETICALLY ENGINEERED CHROMOSOME DERIVED FROM THE DNA OF YEAST
Yeast Artificial Chromosome; Chromosomes, artificial, yeast; Yeast artificial chromosomes
Yeast artificial chromosomes (YACs) are genetically engineered chromosomes derived from the DNA of the yeast, Saccharomyces cerevisiae, which is then ligated into a bacterial plasmid. By inserting large fragments of DNA, from 100–1000 kb, the inserted sequences can be cloned and physically mapped using a process called chromosome walking.
Human artificial chromosome
A human artificial chromosome (HAC) is a microchromosome that can act as a new chromosome in a population of human cells. That is, instead of 46 chromosomes, the cell could have 47 with the 47th being very small, roughly 6–10megabases (Mb) in size instead of 50–250Mb for natural chromosomes, and able to carry new genes introduced by human researchers.
