Traits and Reproduction Chapter 1 Review

There are two wolves that have the same proteins for paw size in their cells. The wolves have different parents. What can you say about the wolves' paw size?

• They will have the same paw size since their proteins for paw size are the same so the proteins will connect in the same way.

• They will have the same paw size since all wolves have the same paw size.

• They will have different paw sizes because even with the same proteins for paw size, the proteins can connect in different ways.

• They will have different paw sizes since only offspring from the same parents have the same size paws.

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There are two tree frogs that have different proteins in their cells for tongue length. They have different parents. What can you say about the frogs' tongue lengths?

• They will have the same tongue lengths because even with different proteins for tongue length, the proteins can connect in the same way.

• They will have different tongue lengths since offspring from different parents will have different tongue lengths.

• They will have different tongue lengths since their proteins for tongue length are different so the proteins will connect in different ways.

• They will have the same tongue lengths since all tree frogs have the same tongue length.

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Two mice have different parents. They both have the same proteins for whisker thickness in their cells. What can you say about the mice's whisker thicknesses?

• They will have the same whisker thicknesses since all mice have the same whisker thickness.

• They will have the same whisker thicknesses since their proteins for whisker thickness are the same so the proteins will connect in the same way.

• They will have different whisker thicknesses because even with the same proteins for whisker thickness, the proteins can connect in different ways.

• They will have different whisker thicknesses since only offspring from the same parents have the same whisker thickness.

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Two parakeets have different parents. They each have different proteins in their cells for beak thickness. What can you say about the parakeets' beak thicknesses?

• They will have the same beak thicknesses since all parakeets have the same beak thickness.

• They will have the same beak thicknesses because even with different proteins for beak thickness, the proteins can connect in the same way.

• They will have different beak thicknesses since offspring from different parents will have different beak thicknesses.

• They will have different beak thicknesses since their proteins for beak thickness are different so the proteins will connect in different ways.

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How do different protein structures in cells determine traits?

• Different protein structures affect how they connect to other proteins molecules.
• Different protein structures have no effect on connecting genes.
• Different protein structures can change the gene.
• Different protein structures provide instructions.

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How do the proteins determine traits in organisms?

• They give instructions to the genes
• It depends on how they connect with other proteins
• The trait depends on what environment the organism lives in. 
• The organism inherits its genes through sexual reproduction.

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Any difference in traits between individual organisms

• Trait

• Variation

• Structure

• Heterozygous

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A specific characteristic of an individual organism.

• Trait

• Feature

• Mutation

• Gene

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Which one is an example of a "feature"?

• Long hair

• Hair color

• Brown hair

• Shape of foot

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Which one is an example of a "trait"?

• Red hair

• Eye color

• Shoe brand

• Shape of ear