1. All of the following are true of receptor kinases except:

	a.	Are found on the plasma membrane.
	b.	Are ion channels.
	c.	Dimerize when binding to their signaling molecule.
	d.	Are transmembrane proteins.
	e.	Contain a protein kinase domain.

2. During protein synthesis, a protein is madein which direction?

	a.	From the 2' end to the 3' end.
	b.	From the 3' end to the 2' end.
	c.	From the 2' end to the 3' end and from the 3'end to the 5' end.
	d.	From the amino-terminal end to the carboxyl-terminal end.
	e.	From the carboxyl-terminal end to the amino-terminal end

3. What type of molecule is ATCAGCTAG?

		Protein.
		Phospholipid.
		DNA.
		RNA.
		Glucose.

4. In the lytic cycle:

	a.	A bacteriophage interacts with an episome and stimulatestranscription of the bacterial chromosome.
	b.	A bacteriophage replicates to very high numbers within abacterial cell and eventually the bacterial cell bursts to releasethe new viruses.
	c.	A bacteriophage binds to the lac repressor andstimulates translation of Rubisco RNA.
	d.	A bacteriophage genome is stably integrated into the bacterialchromosome.
	e.	A bacteriophage stimulates the transcription of an R factor.

5. Which of the following organisms would be expected to havethe largest genome size?

	a.	Bacteriophage T4.
	b.	Escherichia coli.
	c.	Yeast (Saccharomyces cerevisiae).
	d.	Homo sapiens (humans).
	e.	Human immunodeficiency virus (HIV).

6. For a protein to be inserted into the endoplasmic reticulummembrane:

	a.	The protein must have a promoter.
	b.	The protein must have a telomere.
	c.	The protein must have a centromere.
	d.	The protein must have a signal sequence.
	e.	The protein must be in a complex with DNA.