NEET BIOLOGY

Detailed explanation-1: -Modern genetic engineering is more precise than selective breeding in the sense that biologists can modify just a single gene. Also, genetic engineering can introduce a gene between two distantly-related species, such as inserting a bacterial gene into a plant (figure 14.3. c).

Detailed explanation-2: -Selective Breeding Through selective breeding, humans choose organisms with wanted characteristics to produce the next generation. This takes advantage of natural variation among organisms and passes wanted traits to offspring.

Detailed explanation-3: -The difference is that traditional forms of breeding change the plant’s genetics indirectly by selecting plants with specific traits, while genetic engineering changes the traits by making changes directly to the DNA.

Detailed explanation-4: -One of the problems with selective breeding is that it can also result in traits that are not desired. Genetic engineering allows scientists to select one specific gene to implant. This avoids introducing other genes with undesirable traits.