Restriction enzymes identifies specific sequences in the DNA (Deoxyribonucleic acid) and cut the DNA to produce fragments. These enzymes are used in the production of the recombinant DNA. These enzymes cut out the specific required fragment of the DNA, which is then incorporated into the bacteriophage. This recombinant phage DNA then infects the bacterial cell, which produces new particles with this foreign recombinant DNA.
Answer:Metals are lustrous, malleable, ductile, good conductors of heat and electricity. Other properties include: ... Hardness: All metals are hard except sodium and potassium, which are soft and can be cut with a knife. Valency: Metals typically have 1 to 3 electrons in the outermost shell of their atoms.
