DNA Gel Electrophoresis and Restriction Enzymes Part 2

The parents of a new baby believe they brought the wrong child home from the hospital. Gel electrophoresis was performed using DNA samples from the parents and the child. A section of the gel

electrophoresis results is shown below. Which conclusion is valid based on the gel electrophoresis results?

• They have the correct child, because her genetic information is identical to that of the father.

  
  

• They have the wrong child, because her genetic information does not match that of either parent.

• They have the correct child, because her genetic information came from both parents.

  
  

• They have the wrong child, because her genetic information matches only that of the mother.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

This technique used to analyze DNA involves the

• synthesis of new DNA strands from subunits

• separation of DNA fragments based on size

• production of genetically engineered DNA molecules

• removal of defective genes from DNA

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

• Bob
• Sue
• John
• Lisa

DNA is recovered from a suspected dead soldier.  Which Parents are the likely parents of the soldier?

• Parents C and D
• Parents E and F
• Parents A and B
• Parents G and H

Tags

NGSS.HS-LS3-1

The pieces of DNA that are seen in the DNA fingerprint are called:

• Genes

• Granules

• Fragments

• Composites

Which suspect left the blood stain?

• Bob

• Sue

• John

• Lisa

Which male is the father of the child?

• Male 1

• Male 2

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the function of the gel in Gel Electrophoresis?

• extract DNA from the liquid

• filter the DNA as it moves through the system

• buffer the DNA so it keeps moving

• charge the DNA so it will move to the opposite side of the system

Which is NOT a function of buffer in gel electrophoresis

• from preventing the gel from drying out

• the cause the liquid to be salty

• to allow an electrical current to flow through it

• to keep the fragmented DNA from annealing back together