HS Bio Test Prep 3

Open Ended

What are the steps of gene expression?

Open Ended

How might these changes benefit the flatfish?

Open Ended

Why does the thyroxine protein need to enter the nucleus in order to affect gene expression?

Open Ended

What is the relationship between the two graphs?

Open Ended

What conclusions can you draw from this table?

Multiple Choice

Which answer shows the correct sequence for what happens when the thyroxine hormone activates a gene?

• eye migration protein is created > DNA is transcribed > the hormone and receptor bind to gene > the amino acid sequence is created

• hormone and receptor bind to gene > DNA is transcribed > amino acid sequence is created > eye migration protein is created

• DNA is transcribed > hormone and receptor bind to gene > eye migration protein is created > amino acid sequence is created

• amino acid sequence is created > hormone and receptor bind to gene > DNA is transcribed > eye migration protein is created.

Multiple Choice

Which statement best explains how genes cause eye migration in flatfish?

• Genes are transferred to the tissue around the eye and produce proteins that cause migration.

• Genes located in the tissue around the eye produce proteins to cause migration.

• Genes in the thyroid glad produce proteins that move to the tissue around the eye and cause migration.

• Genes that are newly made produce proteins in the tissue around the eye and cause migration.

Multiple Choice

Which paragraph best describes the impact of thyroxine levels during eye migration in flatfish metamorphasis?

• Thyroxine levels decrease while the amount of gene expression decreases. By the end of the eye migration, the sequence of the gene will have changed.

• Thyroxine levels stay the same while the amount of gene expression increases. By the end of the eye migration, the sequence of the gene will have changed.

• Thyroxine levels increase while the amount of gene expression increases. By the end of the eye migration, the sequence of the gene will have remained the same.

• Thyroxine levels stay the same while the amount of gene expression stays the same. By the end of the eye migration, the sequence of the gene will have remained the same.

Multiple Choice

Which explanation is best suppored by te Amino Acid Differences table?

• Both Japanese flounder and tongue sole are missing portions of DNA.

• The zebra fish is different from other symmetrical fish because it is evolving into a flatfish.

• Amino acids in the stickleback and tongue sole are similar to each other because they have the same DNA.

• Amino acids in Japanese flounder and tongue sole are similar to each other because they both undergo metamorphasis.

Multiple Select

The Phylogenetic Tree diagram can be used to show relatedness. Select the two fishes that are most closely related to each other.

• Fish A

• Fish B

• Fish C

• Fish D