7th Grade Science EOY Review

Luna is learning about genetics in her biology class. She wonders, what role does DNA play in organisms?

• It determines organism traits by making proteins.

• It provides energy for the cell.

• It acts as a structural component of the cell.

• It transports nutrients within the cell.

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What is the role of meiosis in organisms?

• To produce energy.

• To transfer traits to the next generation.

• To repair damaged cells.

• To digest food.

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Noah and Avery are learning about genetics in their biology class. They use Punnett squares to understand what?

• To predict the probability of traits in offspring.

• To measure the size of cells.

• To calculate the speed of chemical reactions.

• To determine the age of fossils.

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What are chromosomes?

• Strands of tightly wound DNA.

• Proteins that control cell functions.

• Lipids that store energy.

• Sugars that provide energy.

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Zoe and James are studying DNA in their biology class. They learn that there is something that is always the same for all living things in DNA. What is it?

• The sugar and phosphate molecules on the sides.

• The sequence of nitrogenous bases.

• The number of chromosomes.

• The type of proteins produced.

Tags

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Charlotte is studying genetics in her biology class. She learns about how scientists write out the DNA code. What do they write?

• The sequence of the pairs of nitrogenous bases.

• The number of chromosomes.

• The type of proteins produced.

• The amount of energy stored.

Tags

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Sophia and Noah are learning about DNA, genes, chromosomes, and traits in their biology class. What does this process of understanding illustrate?

• The nature of science.

• The history of mathematics.

• The development of technology.

• The evolution of art.

Lily and Olivia are working on a science project to understand the structure of DNA. What models can they use to investigate it?

• A variety of models.

• A single universal model.

• A mathematical model.

• A chemical model.

Henry is studying genetics and wants to understand what DNA contains that is crucial for genetic information transfer. Can you help him?

• Coded instructions.

• Energy molecules.

• Structural proteins.

• Lipid layers.

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What determines many properties and functions of a building or a machine?

• The structure.

• The color.

• The temperature.

• The age.

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