How does an auxotroph differ from a prototroph?

What will be an ideal response?


Auxotrophs have lost, through mutation, the ability to grow on minimal medium. Prototrophs are capable of growth on minimal medium.

Biology & Microbiology

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Why are rabies shots given to domestic animals yearly and not just once in the animal's lifetime?

What will be an ideal response?

Biology & Microbiology

Using the genetic code shown here, predict the amino acid sequence that would be produced from the following partial

DNA sequence if the top strand is the template strand:3 ’-...TAC ACG TGG ACG TGA TTC TTA...-5’ 5’-...ATG TGC ACC TGC ACT AAG AAT...-3’

What will be an ideal response?

Biology & Microbiology

In Figure 23-2, the X points to a

a) guard cell. b) mesophyll cell. c) vein. d) stoma.

Biology & Microbiology

The biological species concept has been widely adopted, but it also has some practical difficulties. Which of the following is not one of these difficulties?

A. The concept is poorly defined. B. The concept cannot be applied to extinct species. C. Many populations are allopatric. D. The concept does not apply to clonal organisms. E. Testing reproductive isolation in the lab is not always feasible.

Biology & Microbiology