Crop residue use in crop-livestock farms: Challenges and options of mulching in sub-Saharan Africa and South Asia
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Types of cloning vectors 1. plasmids (about 20kb) 2. Bacteriophage (bacterial viruses), 30-50kb inserts 3. Cosmids (35-50kb insert) 4. BACs Use fertility.
1 PARLIAMENT BRIEFING 08 AUGUST 2007 DRAFT NATIONAL ENVIRONMENTAL MANAGEMENT: WASTE BILL.
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