In an existing population of plants and mycorrhizae, disease strikes and the mycorrhizae are killed. Which of the following would be impacted? Check all that apply.
_____ the water supply to the plant
_____ the availability of mineral nutrients to the plant
_____ the binding of the soil and erosion
_____ the supply of organic food to the plant
__X__ the water supply to the plant
__X__ the availability of mineral nutrients to the plant
__X__ the binding of the soil and erosion
_____ the supply of organic food to the plant
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Which is false regarding the two-component regulatory system in bacteria?
A. One part of the system is exposed to the external cellular environment while another part is exposed to the cytoplasm. B. The system involves a sensor kinase and a response regulator. C. The sensor kinase is phosphorylated by the response regulator when the extracellular environment changes. D. Regulation of OmpF and OmpC porin proteins in E. coli is modulated by this type of system.
Which of the following is not part of blood plasma?
A. metabolites and wastes B. proteins C. salts and ions D. hemoglobin
Streptococcus pneumoniae is the most prevalent Gram-negative bacterium isolated from pneumonia patients.
Answer the following statement true (T) or false (F)
What is epigenetic gene regulation?
a. regulation after translation b. regulation when RNA is processed and exported to the cytoplasm after it is transcribed c. regulation when the DNA is uncoiled and loosened at the nucleosomes to bind transcription factors d. regulation when RNA is translated to protein