DNA and RNA Structure

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Tags

NGSS.HS-LS1-1

In DNA, Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for making proteins
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate

Which shows the correct complementary base pairing for DNA?

• C-A, T-G
• A-G, C-T
• C-G, U-A
• T-A, G-C

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

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

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

a nucleotide includes......

• deoxyribose sugar

• phosphate group

• nitrogen containing base

• all of the above

Tags

NGSS.HS-LS1-1

If there are 100 adenines (A) in a DNA molecule, how many thymines (T) will there be?

• 100

• 200

• 400

• 300