After performing a Gram stain of a mixed culture of Gram-positive and Gram-negative cells, you
realize that you omitted the iodine step. What would you expect to see if you observed the slide under
the microscope?
a. pink Gram-positive and purple Gram-negative cells
b. purple Gram-positive and pink Gram-negative cells
c. pink Gram-positive and pink Gram-negative cells
d. colorless Gram-positive and pink Gram-negative cells
e. colorless Gram-positive and colorless Gram-negative cells
C
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An individual's ability to excel in certain types of sports may be due to different muscle fiber types
Certain muscle types allow some people, like marathoners, to have the ability to be involved in sports which require sustained activity of their muscles, while other muscle types, like in sprinters, allow people to excel in sports which require a rapid burst of muscle activity but fatigue quickly. The sustained activity of muscles in marathon runners is due to the higher yield of ATP per glucose. What differences would you predict for marathoners' muscles compared to sprinters'? What will be an ideal response?
Atoms with atomic numbers between lithium and neon have two energy levels
Indicate whether the statement is true or false.
How can your knowledge of neural tube formation provide you with an insight into congenital diseases
that involve incomplete neural tube closure?
What will be an ideal response?Your text describes an experiment in which low-nutrient conditions select bacteria that would kill off other bacteria
When nutrients became plentiful again, these killer bacteria became less common because they had lower fitness in this environment, but they didn't become extinct. Why would some of the killer bacteria survive in the new environment? A) They're waiting for a future time when that trait may be useful again. B) They have changed the killer gene to a less costly one but can regenerate the killer gene when necessary. C) Competition must be low enough that the disadvantage of having the killer trait isn't great enough to cause extinction. D) The killer trait is a dominant trait, so it cannot be eliminated.