DNA, Genes and Chromosomes

What is the structure of DNA?

• Single-Helix

• Double-Helix

• Triple-Helix

• X-Shaped

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Which of the following BEST describes the relationship between DNA, genes, and chromosomes?

• DNA is a type of gene and is located on chromosomes.

• DNA contains chromosomes and is found in genes.

• Genes contain DNA, and chromosomes are located on genes.

• Genes are sections of DNA, and chromosomes are made of tightly coiled DNA.

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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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What is the main function of genes?

• To provide energy to the cells

• To digest food

• To determine the traits of an organism

• To protect the cell from viruses

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What is DNA?

• A type of protein that helps in digestion

• A molecule that contains the instructions an organism needs to develop, live, and reproduce

• A cell component that provides energy for the cell

• A type of carbohydrate that stores energy

A chromosome is made of coiled up ___________.

• cells

• nuclei

• DNA

Why are identical twins genetically identical?

• They inherit exactly the same genes from their parents

• They live in the same environment

• They eat the same food

• They are born at the same time

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A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

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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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