Traits and Reproduction End-of-Unit Review

Front

What determines the shape of a goldfish's tail?

Back

The shape of a goldfish's tail is determined by the different versions of the gene for tail shape that instruct for different proteins, leading to various tail shapes.

Front

Why can two bears with the same proteins have different ear shapes?

Back

Even with the same proteins for ear shape, the proteins can connect in different ways, resulting in different ear shapes.

Front

How does a baby lamb inherit its wool shape?

Back

A baby lamb inherits one copy of the gene for wool shape from its father and one from its mother. This gene combination instructs for proteins that determine the wool's shape.

Front

What happens to the function of a protein if its structure changes?

Back

If the structure of a protein changes, its function may also change, even if the amount of that protein remains the same.

Front

How many types of proteins are present in a pink rose compared to a yellow rose?

Back

The pink rose has one type of protein for petal shape, while the yellow rose has two types of proteins due to having different copies of the gene.

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for making a specific protein, which influences traits.

Front

What is the role of proteins in determining physical traits?

Back

Proteins are responsible for the physical characteristics of an organism, as they are the products of genes and determine how traits are expressed.

Front

What is the difference between inherited traits and acquired traits?

Back

Inherited traits are passed down from parents to offspring through genes, while acquired traits are developed through environmental influences and experiences.

Front

What is genetic variation?

Back

Genetic variation refers to the differences in DNA sequences among individuals, which can lead to different traits.

Front

How do mutations affect traits?

Back

Mutations are changes in the DNA sequence that can alter the function of a gene, potentially leading to changes in traits.