Quiz 2.4

Genetic engineering can be used to alter bacterial cells in order to produce human insulin. The stages in the process are:

I. Insulin gene extracted from a human cell.

II. Bacteria divide and produce large

quantities of human insulin.

III. Plasmid is removed from bacterial cell

and “cut” open.

IV. Insulin gene is inserted into bacterial

plasmid.

The correct sequence of these stage is

• 1,3,4,2

• 1,3,2,4

• 3,4,2,1

• 3,1,2,4

Which of the following best describes the process of genetic engineering?

• swapping of genes between

  organisms

• construction of new

  genetics of DNA

• hybridising of different

  species

• transfer of DNA from one organism to

  Another

Which among the condition below you think be the last to happened of an organism which had underwent genetic engineering?

• A. A plant that received external DNA to produce natural insecticides.

• B. A new plant variety created as a result of mutation.

• C. Seedless fruits resulting from spraying the flowers with chemicals.

• D. A plant that naturally possesses

  medicinal properties.

Which might be the result of the gene of an organism that had underwent genetic modification?

• The gene was removed.

• The gene was added..

• The gene was replaced.

• The gene was divided.

Which of the following describes what happens after the section of DNA has been inserted into the plasmids?

• The plasmid is taken and destroyed.

• The plasmid is inserted into a

  human.

• The plasmid is cloned

• The plasmid is inserted back into a

  bacterial cell.

A result of genetically modified crops, chemical use on farms has:

• Gone up dramatically.

• Gone down dramatically.

• Gone up on some crops but there is

  little or no change on others.

• Not changed

What are the current benefits of having foods made from genetically modified crops?

• They improve farm profitability and make some farmers’ jobs easier.

• They allow farmers to greatly decrease the amount of crops produced.

• They improve the quality taste of food.

• They cause damage to the environment.

What effect does eating genetically modified foods have on your genes?

• It could cause your genes to mutate.

• It could cause your genes to absorb the excess genes.

• It has no effect on your genes.

• The effect on human genetics aren’t known.