Approximately how many bases of RNA are hydrogen bonded to DNA within an RNA polymerase in E. coli?
A. 4
B. 8
C. 10
D. 14
E. 35
Answer B
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The spread of pathogens through the blood and lymph systems that results in a bloodborne systemic infection is called
A) bacteremia. B) cancer. C) pathogenesis. D) septicemia.
____ are meristems in gymnosperms and angiosperms that are often dormant. Upon activation, these structures will go on to form lateral branches
Fill in the blank with the appropriate word.
Which piece of evidence BEST supports the "out of Africa" model of the evolution of modern humans?
A) African populations show the greatest diversity in numbers at a short tandem repeat (STR) locus on chromosome 12. B) African Homo ergaster/erectus appear almost simultaneously with Asian Homo erectus, 1.6 to 1.9 million years ago. C) Both Indonesian fossil Homo erectus and modern Australian aboriginal populations (which probably reached Australia by way of Indonesia) have unusually prominent and straight brow ridges. D) In most regions, there does not seem to be a rapid replacement of earlier hominins by Homo sapiens. E) There is no solid evidence supporting the "out of Africa" hypothesis.
Giovanni is resting peacefully after a long day of hard work. Assuming he is otherwise healthy, what would be the volume of his ventilations?
A) 500 ml B) 1900 to 3300 ml C) 4500 to 6000 ml D) 1100 to 1200 ml