Question

A major difference in the production of transgenic bacteria, plants, and animals is that

A) transgenic bacteria do not pass on their genetic modification to offspring, while plants and animals do.
B) transgenic animals require the use of a host to carry the genetically modified embryo, while bacteria and plants do not.
C) transgenic bacteria and plants receive genes from other species of organisms, while animals are only able to incorporate genes from their own species.
D) so far, only transgenic plants and animals have been successful. Scientists are still trying to create transgenic bacteria.
E) transgenic bacteria, animals, and plants can only incorporate genes from their own species, so the process is unique for each species.

Answer 1

The striking difference in the production of transgenic organisms is that transgenic animals need a host for the genetically modified embryo, in contrast to bacteria and plants which do not require such a host.

Step-by-step explanation:

A major difference in the production of transgenic bacteria, plants, and animals is that B) transgenic animals require the use of a host to carry the genetically modified embryo, while bacteria and plants do not. Transgenic organisms, including bacteria, plants, and animals, involve the insertion of DNA from one species into another. In the case of bacteria, this can involve the use of a plasmid to incorporate foreign DNA, which allows transgenic bacteria to produce substances like human insulin. Transgenic plants often use Agrobacterium tumefaciens to introduce desired genes, and these plants have been modified to exhibit traits such as insect resistance.

Transgenic animals, however, are more complex and often involve the use of a host organism to carry the embryo which has been implanted with recombinant DNA. Such animals are engineered to express specific proteins, like human proteins expressed in the milk of sheep and goats or in the eggs of chickens. Across all organisms, the modified genes are passed on to offspring, allowing for the stable transmission of the traits introduced through genetic engineering.