"Hematocrit" is a measure of the total blood volume accounted for by
A. plasma.
B. leukocytes.
C. erythrocytes.
D. platelets.
E. None of the choices for this question are correct.
C. erythrocytes.
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Which of the following is true of supercoiling?
A. The relaxed form of DNA is more stable and is therefore the preferred form in the cell. B. Most organisms maintain their DNA in a slightly overwound state in order to enhance strand separation during transcription and replication. C. Overwound DNA is in the B form so relaxed DNA has less turns than B-form DNA. D. Most organisms maintain their DNA in a slightly underwound state in order to compact their DNA. E. The relaxed form of DNA can only be maintained if the DNA is a closed circle.
What kind of bond is formed between nucleotides in a polynucleotide such as DNA or RNA?
a. hydrogen b. glycosidic c. phosphodiester d. glucagon
Which renowned biologist defined species as a group of individuals that potentially can interbreed, produce fertile
offspring, and do not interbreed with other groups?
a. Charles Darwin b. E. O. Wilson c. Carl Linnaeus d. Jean-Baptiste Lamarck e. Ernst Mayr
Robert Koch sought a "magic bullet" for the treatment of disease caused by bacteria
Indicate whether the statement is true or false