Scientists have cloned goats so they can take out a protein in the goats’ milk and use it to make medicine. The goats are raised in a laboratory. The medicine that is produced can help with certain diseases that affect humans.%0D%0A%0D%0AWhich best describes a disadvantage of this scenario?%0D%0A%0D%0AThe goats will have more genetic variation.%0D%0AThe goats will become infected with the human diseases.%0D%0AThere are unknown health risks to the goats.%0D%0AThere could be many health risks to drinking the goats’ milk.
There could be many health risks to drinking the goats’ milk.
Why do some people worry that eating genetically modified food may be harmful?%0D%0A%0D%0AAltering the DNA of plants always reduces the nutritional content.%0D%0AGenetic modification reduces the genetic variation in both plants and animals.%0D%0A%0D%0AThere have not been enough long-term studies to prove that this food is safe.%0D%0AThere have been many studies showing that these foods cause disease.
There have not been enough long-term studies to prove that this food is safe.
A researcher changes the DNA in a soybean plant so that it produces offspring with a resistance to weed killer.
Which best describes this scenario?
genetic engineering
gene therapy
cloning
selective breeding
genetic engineering
Finn listed two of the three steps involved in gene therapy.
1. The normal allele is removed from the chromosome.
2. The normal allele is added to the cells of a person with the disorder.
Which step should he also include, and where?
The normal allele is copied before step 1.
The normal allele is copied after step 1.
The unhealthy gene is cut from the DNA before step 2.
The unhealthy gene is cut from the DNA after step 2.
The unhealthy gene is cut from the DNA before step 2.
Which procedure took the DNA from one sheep to produce a genetically identical lamb, named Dolly?
selective breeding
gene therapy
artificial selection
cloning
cloning
Gene therapy is a form of
.