Variation & Evolution Review AQA GCSE

Which of the following could be used as a vector for a human gene?

• Bacterial plasmid

• Bacteria

• A mitochondria

"Transgenic" or "GM" refers to an animal that:

• Has DNA from another organism cut out & inserted into its genome

• Has unique genes for its species

In which ways can genetic engineering improve crops?

• Make them pest or drought resistant

• Make them more nutritious

• Make them larger

• All answers are correct

A circular piece of DNA found in bacteria.

• A plasmid

• RNA

• Ribosome

• Nucleotide

Corn and rice are two of the most genetically modified crops.

• True

• False

When DNA is manipulated and moved from one source to another it is known as...

• genetic engineering

• selective breeding

• evolution

• natural selection

Genetic engineering has been used to produce...

• medicines (e.g. insulin)

• animals for food

• improved crops

• all of these

Which of the following is used to cut DNA molecules at specific points?

• antibodies

• a hormone

• an enzyme

• tweezers

Genes found on DNA contain the instructions for making

• carbohydrates

• fats

• proteins

• starch

A random change in the DNA molecule during replication is called a...

• cancer cell

• virus

• disease

• mutation