Routt DNA Structure

DNA is...

• Single-stranded

• Double-stranded

• Triple-stranded

• Triple-braided

DNA is _____-shaped.

• Ladder-shaped

• Ball-shaped

• X-shaped

• Pyramid-shaped

If DNA is shaped like a twisted ladder, then the sides of the ladder are made of...

• nucleotides.

• adenine and thymine.

• sugar and potassium.

• phosphate and sugar.

If DNA is shaped like a twisted ladder, the rungs of the ladder are made of _____.

• nucleotides.

• adenine and thymine.

• sugar and potassium.

• phosphate and sugar.

_____ are attracted to each other in pairs called complimentary pairs. 

• nucleotides.

• 3' and 5'.

• sugar and potassium.

• phosphate and sugar.

What holds the two sides of the DNA “ladder” together?

• Attraction of sugar to phosphate.

• Attraction of complimentary pairs of nucleotides.

• Attraction of the 3' end to the 5' end.

• Atrraction of Adenine to Cytosine.

DNA is a _____ acid.

• strong.

• weak.

• nucleic.

• inorganic.

What does DNA stand for?

List the 4 Nucleotides.

• Sugar, thymine, cytosine, guanine.

• Adenine, thymine, cytosine, guanine.

• Adenine, thymine, cytosine, uracil.

• Sugar, phosphate, cytosine, guanine.

Which of the following is reliable?

• Adenine is attracted to cytosine.

• Adenine is attracted to guanine.

• Adenine is attracted to uracil.

• Adenine is attracted to thymine.