2007-10-29 21:01:52 · 6 answers · asked by azeem 1 in Science & Mathematics ➔ Biology
It depends on what kind of artificial selection is used.
If the artificial selection is being made based on appearance, such as what happens when a dog breeder selectively weeds out all dogs that do not have appearances fitting the breed standard, then that selection directly acts on the phenotype.
If, on the other hand, the artificial selection is being made based on the organism's DNA test, such as when an heirloom vegetable grower DNA-tests their heirloom tomato plants' DNA, and refuses to grow any plants that the DNA tests show have become genetically modified by cross-pollination with GMO tomatoes, then that sort of artificial selection directly acts on genotype!
2007-10-29 21:30:18 · answer #1 · answered by Anonymous · 2⤊ 0⤋
The direct effect on the phenotype of the parental generations indirectly affects the genotype of the subsequent generations.
2007-10-30 04:18:06 · answer #2 · answered by novangelis 7 · 2⤊ 1⤋
Phenotype.
2007-10-30 04:10:51 · answer #3 · answered by Anonymous · 3⤊ 0⤋
phenotype on the parents but genotype on the offspring
2007-10-30 04:09:40 · answer #4 · answered by PcH 2 · 1⤊ 2⤋
Phenotype - choosing based on appearance, etc.
2007-10-30 04:05:23 · answer #5 · answered by Mike1942f 7 · 3⤊ 1⤋
genotype i think
2007-10-30 04:05:05 · answer #6 · answered by Anonymous · 0⤊ 4⤋