What is the counterstain in Schaeffer-Fulton endospore staining?
What will be an ideal response?
Safranin
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A species of insect that lives solely on pine sap was found to contain a bacterial symbiont
Genome sequencing of both the host and the symbiont revealed that the symbiont lacked many genes required for energy production, and the host lacked genes for biosynthesis of several essential amino acids. What is/are the most likely mechanism(s) that caused the loss of these genes? A) coevolution B) horizontal gene transfer C) increased mutation rate D) horizontal gene transfer and increased mutation rate
Which is NOT an example of the climate of
North America?
a. yearly rainfall b. yearly wind speed and directions c. average temperature over the year d. average temperature during the month of June e. the temperature taken at noon on a Friday in December
The RNA and proteins required for the production of the ribosomes of a cell are produced within the ________, in the nucleus
Fill in the blank(s) with correct word
deoxyribonucleic acid (DNA)
What will be an ideal response?