DNA, Genes, and Chromosomes

What is the structure of DNA?

• Single-Helix

• Double-Helix

• Triple-Helix

• X-Shaped

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The material that exists in every cell in your body that holds your genetic code. It Is like your body’s cookbook.

• Gene

• DNA

• Chromosome

• Trait

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Sections of DNA that contain the set of instructions that control how our body grows and works and controls many of our characteristics.

• Chromosome

• Nucleus

• Genes

• Cell

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Label the following terms: Cell, DNA, Chromosome, Nucleus, Gene

a

b

c

d

e

DNA

Nucleus

Gene

Chromosome

Cell

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How many chromosomes do humans typically have in each cell?

• 23

• 46

• 64

• 92

Chromosomes are

• Found in the mitochondria

• Made of 20 pairs

• Long strands of DNA that contain many genes

• Bundles of DNA that contain only one gene each

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What is this image showing?

• DNA

• Chromosome

• Alleles

• Phenotype

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What are chromosomes made of?

• Proteins and lipids

• DNA and proteins

• RNA and carbohydrates

• Lipids and carbohydrates

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What is a gene?

• A bundle (like a hot dog bun) that the DNA is packed into

• something inside the nucleus

• a piece of DNA

• all of your DNA

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Which of the following statements about genes is true?

• Genes are made of lipids.

• Genes are segments of DNA.

• Genes are proteins.

• Genes are carbohydrates.

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