You are the supervisor of a new reference microbiology laboratory, which will receive clinical specimens for identification of bacterial pathogens. When choosing the types of media to order for culture and isolation procedures in your laboratory, what question(s) do you need to answer?
A. What are the growth factors required by the bacteria that you will be identifying?
B. What kind of microbiota will the patient specimens contain?
C. What type of bacteria will you be culturing?
D. All statements are correct.
Answer: D
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The gene that encodes for plant height in sunflower plants follows a strict recessive/dominant pattern of inheritance and has 2 alleles (tall and short). A tall sunflower plant is crossed with a short sunflower plant. Half of the offspring from this cross are tall, and the other half are short. From this information, what are the parents' genotypes?
What will be an ideal response?
The organism, Phytophthora infestans, responsible for the Irish Potato Famine of 1845 and 1847 belongs to
A. Euglenozoa. B. Alveolata. C. Rhodophyta. D. Chlorophyta. E. Stramenopila.
List, in order of appearance, all the cell types expected to be formed during (a) spermatogenesis and (b) oogenesis
What will be an ideal response?
Methylation and acetylation are common changes made to histone H3, and the specific combination of these changes is sometimes referred to as the "histone code." Which of the following patterns will probably lead to gene silencing?
(a) lysine 9 methylation (b) lysine 4 methylation and lysine 9 acetylation (c) lysine 14 acetylation (d) lysine 9 acetylation and lysine 14 acetylation