Shelt DNA Unit Review

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

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

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it determines the function and growth of an organism

• because we eat it every day for energy

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

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

What is the name for the molecules that make up a DNA strand?

• adenine

• chromosome

• nucleus

• nucleotides

Cytosine always pairs with

• Adenine
• Thymine
• Uracil
• Guanine

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• ribosome
• nucleus

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Which organelle is the location where protein is made?

• Ribosome

• Nucleus

• Cytoplasm

• Nucleotide

What is the term for a three-nucleotide sequence that codes for an amino acid?

• base
• codon
• amine
• serine

The process to go from DNA to mRNA is _______

• translation
• transcription
• replication