DNA Molecule

Which of the following best describes the arrangement of a DNA molecule?

• a line
• a ladder
• a fat "X"
• a circle

When a DNA molecule takes its final shape, it is a:

• twisted double helix
• twisted single helix
• twisted triple helix
• I don't know

In human cells, DNA is protected by a special cell part called the:

• nucleus
• cell membrane
• cytoplasm
• I don't know

Which of the following is NOT part of the DNA "backbone?"

• sugar
• phosphate
• protein
• I don't know

Which of the following DNA pairs are correct?

• A and T
• A and G
• C and T
• I don't know

To keep DNA organized, 

• it is wrapped around protein balls
• it is neatly folded up
• it forms a single circular coil
• I don't know

Why would DNA replicate?

• to make a completely new set of DNA for a new body cell
• just in case the DNA goes bad in this cell
• to send to other body cells whose  DNA is damaged
• I don't know

How does DNA replicate so much information in 6 - 8 hours?

• it copies both sides at the same time
• there are huge chunks already pre-made
• other cells help in the process
• I don't know

What is the function of the soap in the DNA extraction solution?

• to dissolve and open the cell and nuclear membrane
• to clean the sample of any contamination
• to separate the DNA molecules into individual strands
• I Don't know

Which of the following is true about DNA

• each different type of cell contains different DNA
• there is not one gene for every trait, there are often many
• mutations are always bad, they produce deformity
• children inherit DNA from all persons biologically related