DNA & Replication

If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?

• 30
• 15
• 20
• 60

The enzyme that unzips the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

A scientist observes a base sequence of AGCTAG. Which of the following would be the complementary strand?

• TGCATG

• TCGATC

• TAGCTA

• TTAAGG

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication
• Translation
• Transcription

Tags

NGSS.HS-LS3-2

The bonds that hold the two strands of DNA together come from...

• the attraction of phosphate groups 
• strong bonds between  bases and sugars
• carbon to carbon bonds in the sugar
• weak hydrogen bonds between the bases

What is responsible for holding the two strands of the DNA double helix together?

• hydrogen bonds
• alleles
• London dispersion forces
• deoxyribose sugars

Why is DNA important?

• it is expensive

• it is an enzyme

• it serves as the blueprint for traits of all living things

• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the 4 nitrogenous bases found in DNA?

• adenine, thymine, cytoplasm, and guanine

• adenine, thymine cytosine, and guanine

• adenine, thymine, cytosine, and gylcerol

• adenine, thymine, cytosine, and glucose

Which organelle is DNA found in?

• cell membrane

• vacuole

• centriole

• nucleus

Tags

NGSS.MS-LS1-2

Which component of DNA specifies the traits of an organism?

• 5-carbon sugar (deoxyribose)
• hydrogen bonds
• phosphate groups
• nitrogenous base pairs

Tags

NGSS.HS-LS3-1