Nucleic Acids

Why do children often look similar to their parents?

• Genes are responsible for the traits that are expressed.

• Children inherit their parents' pets.

• Children inherit their parents' clothes.

• Children inherit their parents' hairstyles.

What are the functions of DNA and RNA?

• DNA stores information needed to make lipids, RNA transmits information stored in carbohydrates.

• DNA stores information needed to make carbohydrates, RNA transmits information stored in lipids.

• DNA stores information needed to make nucleic acids, RNA transmits information stored in amino acids.

• DNA stores information needed to make proteins, RNA transmits information stored in DNA.

Why is A always paired with T and G with C in DNA?

• These pairings make the DNA glow in the dark.

• These pairings make the DNA smell good.

• These pairings make the DNA colorful.

• These pairings make for the most stable arrangement of the double helix.

What DNA code words specify the amino acid leucine (Leu)? What amino acids does the code word GAG specify?

• AAT, AAC, GAA, GAG, GAT, and GAC specify leucine. GAG specifies leucine only.

• GAG, GAC, GAT, GAA, GAG, and GAC specify leucine. AAT specifies leucine only.

• GAG, GAC, GAT, GAA, GAG, and GAC specify leucine. GAG specifies leucine only.

• AAT, AAC, GAA, GAG, GAT, and GAC specify leucine. AAT specifies leucine only.

What are gene mutations?

• Substitutions, additions, or deletions of one or more amino acids in the protein molecule.

• Substitutions, additions, or deletions of one or more nucleotides in the DNA molecule.

• Substitutions, additions, or deletions of one or more lipids in the cell membrane.

• Substitutions, additions, or deletions of one or more carbohydrates in the cell wall.

Which of the following is not an example of DNA technology?

• Genetically modified crops

• Cloning

• Blood typing

• DNA typing

What is the first practical application of recombinant DNA technology mentioned in the text?

• Inserting the gene for making human nucleic acids into bacteria.

• Inserting the gene for making human carbohydrates into bacteria.

• Inserting the gene for making human lipids into bacteria.

• Inserting the gene for making human insulin into bacteria.

What is the main concern about genetically modified crops mentioned in the text?

• Improved taste of the crops.

• Decreased yield of the crops.

• Increased nutritional value of the crops.

• Contamination of other crops if grown and processed in close proximity.

What is the purpose of DNA typing mentioned in the text?

• To create DNA profiles to identify a person from their shoe size.

• To create DNA profiles to identify a person from their eye color.

• To create DNA profiles to identify a person from their fingerprints.

• To create DNA profiles to identify a person from samples of hair, skin cells, or body fluid.

What is the effect of the deletion of a single base from a gene?

• It can result in the production of a protein with a different color.

• It can result in the production of a faulty protein or no protein at all.

• It can result in the production of a more efficient protein.

• It can result in the production of a protein with a different smell.