Depletion of carbon and nitrogen initiate endospore formation in Bacillus, Clostridium, and Sporosarcina.

A) True
B) False


A) True

Biology & Microbiology

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The quick response of the immune system to a second infection is due to the _____, a feature of the immune system as demonstrated by the success of vaccines

a. activation of macrophage cells b. suppression of suppressor cells c. T and B memory cells d. high levels of antigen e. new cytotoxic T cell.

Biology & Microbiology

Binding of _____ to _____ in DNA can increase the rate of transcription of specific genes

a. activators; promoters b. activators; enhancers c. repressors; operators d. both activators; promoters and activators; enhancers

Biology & Microbiology

_____ cut(s) DNA molecules at specific sites

a. DNA polymerase b. DNA probes c. Restriction enzymes d. Reverse transcriptase

Biology & Microbiology

Which of these statements about hypertension is true?

A. Blood pressure is less than 120/80. B. Poor diet and lack of regular exercise puts one at increased risk. C. Sickle-cell anemia often accompanies this condition. D. Most Americans with the condition seek treatment. E. Atherosclerosis is another name for this condition.

Biology & Microbiology