A cell with an extensive area of smooth endoplasmic reticulum is specialized to _____
A) play a role in storage
B) synthesize large quantities of lipids
C) actively export protein molecules
D) import and export protein molecules
B) synthesize large quantities of lipids
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You are working on a research project that involves a mutational analysis of the light harvesting complex Lhca1, which is an important light harvesting complex found in plants. Your labmate asks where this complex is located. You say it is in the
A. inner chloroplast membrane B. matrix C. thylakoid membrane D. stroma E. outer chloroplast membrane
Which situation would result in a population represented by an inverted triangular population pyramid, which is heaviest at the top?
A) rapid population growth B) population stabilization C) a "boom and bust" cycle D) a population decline
Based on a patient's medical history, a doctor suspects that the patient may have been exposed to syphilis several years prior. Since the patient is currently asymptomatic, the doctor will be testing to see if the patient is in the latent stage of syphilis. Which of the following would be the most effective way to diagnose syphilis during latency?
A. dark-field microscopy of scrapings from chancres B. dark-field microscopy of blood specimens C. culture of blood specimens on syphilis selective agar D. serological testing of blood specimens
Genes at one locus that affect the expression of genes at a different locus are said to be
A. epistatic. B. linked. C. codominant. D. continuous. E. alleles.