Which of the following is FALSE regarding grape cultivation?
◦ phenotypes are usually maintained through self-fertilization or crossing with another cultivar
◦ clonal propagation helps to maintain highly heterozygous cultivars
◦ the vines are usually chimeric
◦ the shoots are often genetically identical and chosen on the basis of their fruit phenotype
◦ the roots are often genetically identical and chosen for being well adapted to soil conditions