samamoodi kui loomarakke. Milliste tehnoloogiate abil sellest üle saadakse? Erinevalt loomarakust ümbritseb taimerakku paks tsellulooskest, mis on märksa tõsisemaks takistuseks kui lihtsalt membraan. Perhaps the most successful method involves the pathogenic bacterium Agrobacterium tumefaciens, which has the innate ability to transfer DNA to plant cells. In nature, this transfer results in formation of plant tumors (crown galls) at the infection site. Molecular biologists, however, have disarmed this bacterium and constructed domesticated strains that no longer cause tumors but transfer any DNA of interest to plant cells. The major disadvantage of the highly efficient Agrobacterium system is that it does not work with all plant species, most notably the cereals. Other techniques use physical or chemical agents to transfer DNA into plant cells.
Than the main voice of Denmark goes withal. Then weigh what loss your honour may sustain, If with too credent ear you list his songs, Or lose your heart, or your chaste treasure open To his unmaster'd importunity. Fear it, Ophelia, fear it, my dear sister, And keep you in the rear of your affection, Out of the shot and danger of desire. The chariest maid is prodigal enough, If she unmask her beauty to the moon: Virtue itself 'scapes not calumnious strokes: The canker galls the infants of the spring, Too oft before their buttons be disclosed, And in the morn and liquid dew of youth Contagious blastments are most imminent. Be wary then; best safety lies in fear: Youth to itself rebels, though none else near. OPHELIA I shall the effect of this good lesson keep, As watchman to my heart. But, good my brother, Do not, as some ungracious pastors do, Show me the steep and thorny way to heaven; Whiles, like a puff'd and reckless libertine,
annaabi.ee 
