Day 55 gel electrophoresis

name first and last

This laboratory procedure is known as

• CLONING
• gel electrophoresis
• chromatography
• use of a dichotomous key

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

Gel electrophoresis is used to separate DNA fragments on the basis of which property?

• size
• color
• functions
• chromosomes

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

• Bob
• Sue
• John
• Lisa

Which two bear species are most closely related?

• Bear 1 and Bear 2
• Bear 1 and Bear 3
• Bear 2 and Bear 3
• There’s no way to tell

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

Which man is the father of this baby?

• Father 1
• Father 2
• Father 3
• None of them

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

How are buffers used in Electrophoresis?

• Conduct electricity
• Remove salts
• Add extension energy
• Dissolve excess DNA