Pbs

DNA is cut at specific nucleotide sequences by

• RFLPs

• Restriction Enzymes

• DNA Proteins

• Gel Electrophoresis

When running a gel electrophoresis, DNA will migrate towards the __________________ end because DNA has a __________________ charge.

• positive; positive
• negative; positive
• negative; negative
• positive; negative

Gel electrophoresis is used to separate the fragments of DNA. The larger pieces of DNA will travel __________________ the smaller fragments through the gel.

• at the same speed as

• further than

• slower than

• in the opposite direction as

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

Base your answer to the following question on the diagram below, which represents a portion of a type of organic molecule present in the cells of organisms. This laboratory technique is known as

• gel electrophoresis

• DNA replication

• protein synthesis

• genetic recombination

A student performed a gel electrophoresis experiment. The results are represented in the diagram

below. Compared to the fragments at the top of the gel, the fragments at the lower end are

• larger, and move slower

• larger, and move faster

• smaller, and move faster

• smaller, and move slower

Based on these results whose blood was found in the blood stain at the crime scene?

• Bob
• Sue
• John
• Lisa

Tags

NGSS.HS-LS3-1

Which suspect is likely guilty?

• Suspect #1
• Suspect #2
• Suspect #3

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

DNA fingerprinting works because

• Most genes are dominant
• All organisms contain RNA
• The most important genes are different among most people
• No two people, except identical twins, have exactly the same DNA 

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

• DNA is negatively charged so attracted to the positive end of the unit
• DNA is positively charged to attracted to the negative end of the unit
• the agarose gel in negatively charged
• the agarose gel is positively charged

Tags

NGSS.HS-PS2-5