GEL ELECTROPHORESIS

This laboratory procedure is known as

• CLONING

• gel electrophoresis

• chromatography

• use of a dichotomous key

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

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

What is this technique an example of?

• chromatography

• gel electrophoresis

• direct harvesting

• genetic engineering

Tags

NGSS.HS-LS3-2

The results of which laboratory technique are represented in the diagram?

• chromatography

• manipulation of genes

• genetic engineering

• gel electrophoresis

A technique that can be used to compare the DNA of two or more plants is

• cloning

• chromatography

• staining

• gel electrophoresis

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

What is this technique an example of?

• chromatography

• gel electrophoresis

• direct harvesting

• genetic engineering

Tags

NGSS.HS-LS3-2

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

• size

• color

• functions

• chromosomes