Genes and DNA Quiz

What are genes made of?

• Proteins

• DNA

• RNA

• Nitrogen bases

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What is the role of genes in an organism's body?

• They form the sides of the DNA ladder.

• They provide the directions for a cell to put together molecules that express traits.

• They are involved in the process of making proteins from RNA.

• They coil the DNA in a chromosome.

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How is DNA structured within a chromosome?

• It is loosely arranged.

• It is straight and uncoiled.

• It is tightly coiled like a coiled spring.

• It is made of proteins only.

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What is the significance of the coiling of DNA in a chromosome?

• It helps in the translation process.

• It allows for more genes to fit in a small space.

• It forms the sides of the DNA ladder.

• It changes the color of the eye or seed shape.

What is DNA an abbreviation for?

• Deoxyribonucleic acid

• Deoxyribose nitrogen acid

• Deoxyribonucleotide acid

• Deoxyribonucleic arrangement

According to the key concept, how do changes to genetic materials affect an organism?

• They change the structure of DNA.

• They have no effect on traits.

• They affect the organism's traits.

• They alter the process of translation.

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What is the shape of DNA as described in the text?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Who were the two scientists in London that used x-rays to study DNA?

• Watson and Crick

• Franklin and Wilkins

• Darwin and Mendel

• Crick and Watson

What did the x-rays taken by Franklin and Wilkins show about DNA?

• That DNA is a single-stranded molecule

• That DNA is a double-stranded molecule

• That DNA has a helix shape

• That DNA is composed entirely of proteins

What are the sides of the DNA helix made of, as shown in the figure?

• Amino acids

• Sugar-phosphate groups

• Nitrogen bases

• Hydrogen bonds

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