Biotechnology

Front

In preparation for an electrophoresis procedure, enzymes are added to DNA in order to:

• convert the DNA into gel
• cut the DNA into fragments
• change the color of the DNA
• produce longer sections of DNA

Back

cut the DNA into fragments

Front

In a gel electrophoresis experiment, how do the fragments at the lower end of the gel compare to those at the top?

Back

smaller, and move faster

Front

Why does DNA fingerprinting work?

Back

No two people, except identical twins, have exactly the same DNA 

Front

What is the purpose of gel electrophoresis?

Back

separates DNA based on size

Front

Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?

Back

DNA is negatively charged so attracted to the positive end of the unit

Front

In gel electrophoresis, where will the largest DNA fragment appear? Options: closest to the starting wells, farthest from the starting wells, three quarters away from the starting wells, it depends on how many fragments there are.

Back

closest to the starting wells

Front

What is the primary purpose of using restriction enzymes in gel electrophoresis?

Back

It allows the strands of DNA to be cut into various lengths for testing.

Front

Which two bear species are most closely related?
Options: Bear 1 and Bear 2, Bear 1 and Bear 3, Bear 2 and Bear 3, There’s no way to tell

Back

Bear 1 and Bear 3

Front

This laboratory procedure is known as: Gene cloning, gel electrophoresis, chromatography, cDNA synthesis

Back

gel electrophoresis

Front

Whose blood was found in the blood stain at the crime scene? Options: Bob, Sue, John, Lisa

Back

John