PBS 1.1.4-1.1.6

Front

What is the main purpose of gel electrophoresis in DNA analysis?

Back

To separate DNA fragments based on size.

Front

Adenine bonds with ______________.

Back

Thymine.

Front

True or False: Blood typing cannot be used on dried blood.

Back

False.

Front

How can investigators individualize blood evidence?

Back

By identifying the DNA from the nucleus of white blood cells.

Front

Which of the following is not a major component of blood in humans?

Back

Epithelial cells.

Front

What are the four main components of human blood?

Back

Red blood cells, white blood cells, plasma, and platelets.

Front

What is the function of red blood cells?

Back

To transport oxygen throughout the body.

Front

What is the role of white blood cells?

Back

To fight infections and protect the body against foreign invaders.

Front

What is plasma?

Back

The liquid component of blood that carries cells, nutrients, hormones, and waste products.

Front

What is the significance of DNA in forensic science?

Back

DNA can be used to identify individuals and link them to crime scenes.