Assume that a given plasmid vector to be used in a cloning experiment contains 4000 base pairs of dna. assume also that the restriction endonuclease cuj cuts this plasmid at the following sites (starting from an arbitrary zero point): 1000, 1500, and 3000. given complete digestion of the plasmid with the endonuclease so that only linear fragments are produced, what sizes of dna are expected?

there are plastid colour pigment organelle containing a verity of colours

              plastids contain of three organelles 1) chloroplast   (2)   chromoplast   (3)   lecoplast

            the verities of colours are present in chromoplast rather than green so, petals of sun flavour colour is due to chromoplast.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.