Restriction Enzymes and Gel Electrophoresis

This laboratory procedure used to create this 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

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.

What is this technique an example of?

• chromatography

• gel electrophoresis

• direct harvesting

• genetic engineering

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

Which set of terms correctly identifies the procedure

shown in the diagram below and a substance

produced by this procedure?

• selective breeding-growth hormone

• cloning-antibiotics

• genetic engineering-insulin

• replicating-glucose

What is the result of step 3?

• a new type of molecular base is formed

• different types of minerals are joined together

• DNA from the bacterial cell is cloned

• DNA from different organisms is joined together

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

• Bob

• Sue

• John

• Lisa

Which man is the father of this baby?

• Father 1

• Father 2

• Father 3

• None of them