Genetic engineering is a process that modifies the genome of an organism to introduce desirable characteristics.
Which organisms can be genetically modified?
Plants and animals.
Which statement about enzymes involved in genetic engineering is correct?
Restriction enzymes join pieces of DNA together.
Restriction enzymes cut DNA at specific sites.
Ligase enzymes cut DNA at specific sites.
Why are bacterial cells chosen as a recipient organism?
Hard to manipulate.
Easy to manipulate.
When making genetically engineered insulin, where is the human insulin gene placed?
Inside a bacterial plasmid.
Inside a human cell.
Which processes are involved in the downstreaming of insulin?
Extraction, purification and packaging.
Reproduction, extraction, purification and packaging.
Before genetic engineering was possible, how was insulin obtained for the treatment of diabetes?
From human volunteers.
Why is the same restriction enzyme used to cut out the human insulin gene and cut open the bacterial plasmid?
To provide complementary ‘sticky ends’.
To save money.
To save time.