Genetic Engineering Review

Which genetic engineering technique separates DNA fragments based on their size?

• PCR

• Gel Electrophoresis

• Gene Cloning

• CRISPR

The process of making changes in the DNA code of a living organism is called

• selective breeding 

• genetic engineering

• inbreeding

• hybridization

Two organisms that are closely related would have

• very similar DNA sequence

• exactly the same DNA sequences

• no proteins in common

• completely different DNA sequence

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In which ways can genetic engineering can improve crops

• Make them pest or drought resistant

• Make them more nutritious

• Make them larger

• All answers are correct

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

• genetic engineering

• electrophoresis

• gene therapy

• GMO

What enzyme is used to ensure that the recombinant DNA created is bonded back together?

• DNA polymerase

• RNA polymerase

• ligase

• helicase

Gel electrophoresis enables scientists to

• separate DNA fragments.

• combine DNA fragments.

• count the genes in DNA.

• insert DNA in cells.

Genetic engineering has been used to produce

• medicines.

• food animals.

• improved crops.

• all of these.

Genes found on DNA contain the instructions for making  

• pyrimidines 
  

• pyrimidines

• proteins

• purines

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simple ring of DNA from prokaryotes

• plasmid

• restriction enzymes

• recombinant DNA

• gene