Traits & Reproduction Unit Test

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 all wolves have the same 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 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.

Two birds have different parents. One bird has pink chest feathers, and the other bird has blue chest feathers. Why do the birds have different feather colors on their chest?

• The birds have different versions of the gene for feather color, which instruct for different proteins that connect in different ways to make different feather colors.

• The birds have different versions of the gene for feather color, and the genes are different colors in each bird's feathers.

• Each bird has different feather colors because they have different versions of the gene for feather color that connect together to make different feather colors.

• Each bird has different feather colors because offspring from different parents will have different feather colors.

A butterfly has blue wings. Its mother has blue wings, but its father has colorless wings. Which of these statements explains why the butterfly has blue wings?

• The butterfly inherited one copy of the gene for wing color from its mother and one copy from its father. Those genes connect together to make its wings blue.

• The butterfly inherited its copies of the gene for wing color from its mother and not from its father. Those genes connect together to make its wings blue.

• The butterfly inherited one copy of the gene for wing color from its mother and one copy from its father. That gene combination instructs for proteins that connect in ways that make its wings blue.

• The butterfly inherited its copies of the gene for wing color from its mother and not from its father. Just like its mother’s genes, those genes instruct for proteins that connect in ways that make its wings blue.

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

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

Two bulls have different parents. They have differently shaped horns. Why do the bulls have differently shaped horns?

• The bulls have different versions of the gene for horn shape, which instruct for different proteins that connect in different ways make their horn shapes different.

• The bulls have different versions of the gene for horn shape. The genes are curved differently in each beetle’s horns.

• Each bull has a different horn shape because offspring from different parents will have different horn shapes.

• Each bull has a different horn shape because they have different versions of the gene for horn shape that connect together to make different horn shapes.

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

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

• 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 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 since only offspring from the same parents have the same whisker thickness.

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

• 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.

• 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 the same beak thicknesses since all finches have the same beak thickness.

A father monkey has a curly tail while the mother monkey has a straight tail. Which of these statements explains why one of their babies could have a curly tail?

• The monkey inherited its copies of the gene for tail shape from its father and not from its mother. Just like its father’s genes, those genes instruct for proteins that connect in ways that make its tail curly.

• The monkey inherited its copies of the gene for tail shape from its father and not from its mother. Those genes connect together to make its tail curly.

• The monkey inherited one copy of the gene for tail shape from its father and one copy from its mother. Those genes connect together to make its tail curly.

• The monkey inherited one copy of the gene for tail shape from its father and one copy from its mother. That gene combination instructs for proteins that connect in ways that make its tail curly.

Kaylee reads an article about a family of panthers. One of them had a mutation for tooth sharpness. Which of these statements about the panther with the mutation is true?

• There must have been a change in the panther’s genes.

• The panther must have sharper teeth.

• There will be no change to the panther’s teeth.

• The panther must have less sharp teeth.

The body cells of scorpions have proteins that connect together. In one scorpion, the structure of the proteins in the body cells changed, but the amount of that type of protein in the cell stayed the same. What happened to the function of that type of protein?

• The changed protein connects differently, but its function doesn’t change.

• The changed protein connects differently, so its function changes.

• The changed protein connects in the same way, but its function changes.

• The amount of that type of protein stayed the same, so its function doesn’t change.