Traits / Reproduction Study Guide For Quiz A

6. Two dogs have different parents. One dog has ears that flop over, and the other dog has ears that stand straight up. Why do the dogs have ears with different shapes?

• The dogs have different versions of the gene for ear shape. The genes are only standing straight up in the cells of one rabbit’s ears.

• The dogs have different versions of the gene for ear shape, which instruct for different proteins that connect in different ways to make different ear shapes.

• Each dogs has a different ear shape because offspring from different parents will have different ear shapes

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

8. The body cells of a Brown Widow spider have proteins that connect together. In one Brown Widow spider, 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.

9. Rihanna is trying to figure out how tooth size is determined in two different tigers. In tiger 1, the copies of the gene are different from each other. In tiger 2, the copies of the gene are the same as each other. How does this affect how many types of proteins there are in each tooth cell?

• Tiger 1 has one type of protein for the tooth size feature. Tiger 2 has one type of protein for the tooth size feature.

• Tiger 1 has two types of protein for the tooth size feature. Tiger 2 has one type of protein for the tooth size feature.

• Tiger 1 has two types of protein for the tooth size feature. Tiger 2 has two types of protein for the tooth size feature.

• It is impossible to say anything about proteins from the given information.

10. There are two coyotes that both have the same proteins for ear shape in their cells. The coyote have different parents. What can you say about the coyotes' ear shape?

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

• They will have the same ear shape since all bears have the same ear shape.

• They will have different ear shapes because even with the same proteins for ear shape, the proteins can connect in different ways.

• They will have different ear shapes since only offspring from the same parents have the same ear shape.

14. Two cats have different parents. The two cats have different proteins in their cells for the dark color on the tip of their paws. What can you say about the color on the tip of the two cats' paws?

• The paws will be the same color since all cats have the same paw color.

• The paws will be the same color because even with different proteins for paw color, the proteins can connect in the same way.

• The paws will be different colors since offspring from different parents will have different colored paws.

• The paws will be a different color since their proteins for paw color are different so the proteins will connect in different ways.