Flashcards · Biology · Selective Breeding and Genetic Engineering
Genetic Engineering
-
What is genetic engineering?
Modifying the genome of an organism by adding a gene from another organism.
-
What is a GM organism?
An organism with genes that have been changed by genetic engineering.
-
Why can a human gene work in a bacterium?
All organisms use the same genetic code.
-
What do bacteria with the human insulin gene make?
Human insulin.
-
When was GM insulin first approved?
1982.
-
What was insulin made from before?
The pancreas of pigs and cattle.
-
What is a vector?
A carrier, such as a plasmid, used to put a gene into a cell.
-
What is a plasmid?
A small ring of DNA in a bacterium.
-
Give one use of genetic engineering in agriculture.
Insect-resistant crops, herbicide-resistant crops or golden rice.
-
What is golden rice?
A GM rice that makes beta-carotene, which can be turned into vitamin A.
-
What is gene therapy?
Putting a healthy gene into a patient's cells.
-
Give a difference between genetic engineering and selective breeding.
Genetic engineering can add genes from any species, in one generation.
-
What device is used to grow GM bacteria on a large scale?
A fermenter.
-
What is the genetic code?
The rules that link triplets of bases to amino acids, and which are the same in all living things.
-
Does genetic engineering use the whole organism?
No. It moves a gene or a few genes.
-
Common mistake about genetic engineering?
Saying the bacteria make a copy of the person. They only make the protein from the gene.