Unit 1 Gene Expression Test Day Quiziz

Multiple Choice

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?

• They actually have different DNA in the two types of cells.

• The genome of the different cells changes

• The proteins expressed in each cell are different

• The two different cells become mutated

Multiple Choice

True or False. All of your body cells contain the same genes.

• True

• False

Multiple Choice

The lac operon is transcribed when this happens.

• lactose removes the repressor protein

• the repessor protein is present

• there is no lactose present

Multiple Choice

True or False. The lac operon is activated when lactose causes the repressor protein to fall off allowing RNA polymerase to transcribe.

• True

• False

Multiple Choice

A protein that binds to the operator and blocks the RNA polymerase

• promoter

• operator

• oppressor

• repressor

Multiple Choice

The lac operon genes only become expressed if:

• glucose binds the receptor

• lactose binds the receptor

• lactose is not present

• the repressor falls off randomly

Multiple Choice

Which clue would indicate the Lac Operon is activated?

• lactose is not present

• The repressor protein has fallen of the molecule.

• RNA polymerase is blocked

Multiple Choice

Cutting DNA from one organisms and placing it into the DNA strand of another organism is called:

• RNA recombinant

• DNA recombinant

• DNA magic

• DNA cloning

Multiple Choice

When scientists insert the DNA of one organism into another, what does this cause the second organism to produce?

• another organism

• proteins

• sugar

Multiple Choice

How is the information in a DNA molecule expressed in an organism?

• through DNA

• through magic

• through proteins

• through RNA polymerase

Multiple Choice

What makes a muscle cells different from a nerve cell?

• They have different portions of activated DNA.

• They have different DNA to make them those specialized cell types.

• They have different genes

• They have experinced enviromental circumstances

Multiple Choice

What is the definition of cell specialization?

• an organism that contains cells

• the replication of DNA

• special mutations

• the differentiation of cells as they develop

Multiple Choice

What is the correct order to make a protein?

• Protein, DNA, RNA

• DNA, RNA, Protein

• Protein, RNA, DNA

• RNA, DNA, Protein

Multiple Choice

____ is the activation of a gene that results in transcription.

• prokaryote expression

• eukaryote expression

• gene expression

• self expression

Multiple Choice

How is the information in a DNA molecule expressed in an organism?

• through proteins

• through plasmids

• through RNA polymerase

• through magic

Multiple Choice

In eukaryotes proteins that aid in gene regulation are called

• translation factors

• RF factors

• transcription factors

• discrimination factors

Multiple Choice

What would happen if a chemical interfered with the ability of RNA polymerase to bind to a DNA molecule?

• Transcription would proceed, and a protein would be produced.

• The DNA molecule would replicate itself.

• Transcription would not take place, and the protein would not be produced.

• The RNA polymerase would cut the DNA molecule in half.

Multiple Choice

When a human embryo is developing, the embryo produces a special type of hemoglobin not found in infant, child, or adult blood. Which of the following best explains how an embryo can produce a different type of hemoglobin from an infant, child, or adult?

• Humans have genes for the different types of hemoglobin, which are expressed at different times.

• The embryo has different genes from the infant, child, or adult.

• Aliens visited the human at different phases of their lives and changed them.

• Development and differentiation result in the loss of certain genes.