What is the eukaryotic chromosome composed of?
a. DNA and carbohydrate
b. DNA only
c. DNA and protein
d. RNA only
Ans: c. DNA and protein
You might also like to view...
Sputum from a patient with a history of tuberculosis due to Mycobacterium tuberculosis bacteria is collected and sent to the microbiology lab for analysis. X-ray analysis and an acid-fast smear made from the sputum indicate that the patient has active tuberculosis. The physician has requested that the sputum be analyzed for pathogen load, but because colonies of Mycobacterium typically take between 3 to 8 weeks to appear on agar, results from traditional culture methods are often delayed. If you were the microbiologist in this case, what would you do?
A. Using the sputum, apply end-point PCR with primers to Mycobacterium tuberculosis DNA to estimate the pathogen load, then follow up with a traditional culture. B. Set up a traditional culture on the sputum, then use the colonies for real-time PCR with primers to Mycobacterium tuberculosis DNA to quantify the pathogen load. C. Set up a traditional culture on the sputum, then use the colonies for end-point PCR with primers to Mycobacterium tuberculosis DNA to quantify the pathogen load. D. Using the sputum, apply real-time PCR with primers to Mycobacterium tuberculosis DNA to estimate the pathogen load, then follow up with a traditional culture.
Which of the following defense mechanisms are found in invertebrates?
a. phagocytes b. lysozyme c. antibodies d. phagocytes and lysozyme e. phagocytes, lysozyme, and antibodies
Anabolic pathways involved in the synthesis of essential molecules are usually regulated in response to
A) the end product of the pathway. B) a substrate of the pathway. C) other metabolites that are limiting. D) the levels of enzymes in the pathway.
Differentiate between the following terms: primates, anthropoids, hominoids, and hominids. What will be an ideal response?