If a double-stranded DNA has 20% adenine, then it will have ________ % cytosine
Fill in the blank(s) with correct word
30
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How did Darwin refer to changes in a population over many generations?
a. genetic drift b. descent with modification c. differential reproduction d. mutations
What statement describes the present situation in Canada for boys regarding the HPV vaccine?
A. Health Canada had NOT yet approved the HPV vaccines for boys between the ages of 9 and 26. B. Health Canada approved the HPV vaccines for boys between the ages of 9 and 26 but NO provinces are offering the vaccine free to boys. C. Health Canada approved the HPV vaccines for boys between the ages of 9 and 26 but ONLY six provinces are offering the vaccine free to boys. D. Health Canada approved the HPV vaccines for boys between the ages of 9 and 26 and EVERY Canadian Provinces and Territory is offering the vaccine free to boys.
EHEC is a major cause of diarrhea in developing countries and may result in the death of small children
Indicate whether the statement is true or false
The Gram stain, acid-fast stain and endospore stain have the following in common:
A. used on a wet mount of the specimen B. use heat to force the dye into cell structures C. outcome based on cell wall differences D. use a negative stain technique E. are differential stains