Learn Genetics- PCR

Directions: Scroll down and hit "start" to watch the animation. When it stops talking, answer the question below and then click the arrow on the right side to continue. Each time you have to hit the right arrow, you will have a question to answer here.

Question: Select all the places you could find DNA?

• In living things

• In dead skin

• In feces

Can you see a single strand of DNA with a microscope?

• Yes

• No

The full name of the technique being discussed for visualizing DNA is ​ (a)   ​ (b)   ​ (c)  

• Polymerase
• Chain
• Reaction
• Proton
• Chair
• Rock
• DNA

Name one area or fields in which PCR is helpful.

What do you need to know about the target sequence in order to be able to use PCR?

• The length of the target sequence

• The letters around the target sequence

• Nothing. PCR always works

Before you do PCR, you need to make what?

• Primers

• New DNA

• Polymerase

• Cookies

• Elements

Did you put primer two in the right spot?

• Yes

• No. (don't click this answer! Fix it and select Yes)

"To do PCR, you need to add ​ (a)   copies of the two primers.

• many
• 1
• 2
• 5
• 10
• 100

What enzyme copies DNA?

Answer explanation

If you just said "Polymerase" that is wrong because there are different types of polymerases and they make different molecules. DNA polymerase specifically makes DNA.

What are the monomers of Nucleic Acids (such as DNA)?

• Nucleotides

• Amino Acids

• Monosaccharides

• Fatty Acids

• Sugars