What is the primary function of centrioles in animal cells?
a. to provide a point of attachment for spindle fibres on chromosomes
b. to connect the two sister chromatids
c. spindle formation
d. the generation of flagella and cilia
Ans: d. the generation of flagella and cilia
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During oogenesis meiosis results in _____
A) four equally sized cells that stop dividing in meiosis I B) two equally sized cells that are both typically fertilized C) two equally sized cells, but only one is typically fertilized D) two or three small cells and one large cell that develops further if fertilized
The term axenic is used to describe a(n)
A) anaerobic culture. B) anoxygenic culture. C) nutritionally deficient culture. D) pure culture.
Your patient has a rash, a fever, and a very high white blood cell count. Blood specimens are taken, put into culture bottles, and sent down to the microbiology lab for incubation and analysis. Select the statement that best reflects why microbial analysis of blood is an important step in patient diagnosis.
A. Microbial growth in blood samples may indicate sepsis. B. A lack of microbes in the blood means that the patient's health is critical. C. Blood specimens are often obtained through poor aseptic technique by the healthcare worker: this is documentation of their failure to employ proper universal precautions. D. A few bacterial cells in a blood sample are no big deal and should be ignored.
The rate of aggressive interactions among individuals increases as population density increases
Indicate whether the statement is true or false