Which of the following blood cells are derived from megakaryocytes?
a. red blood cells
b. monocytes
c. platelets
d. neutrophils
c
Biology & Microbiology
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In this step in the identification of the colony that
contains a targeted gene, a. bacterial cells are cloned. b bacterial colonies are transferred. c. bacterial cells are ruptured. d. DNA is lysed. e. cells with the targeted gene are identified.
Biology & Microbiology
Approximately how large is the human genome?
A) 20,000 bp B) 1 billion bp C) 3 billion bp D) 13 million bp E) 30 billion bp
Biology & Microbiology
Which vestigial structure found in humans is best explained by our evolutionary heritage?
A) tailbone B) lack of body hair C) upright posture D) opposable thumb
Biology & Microbiology
A good average value for the amount of energy that reaches the next trophic level is about
A. 20%. B. 10%. C. 1%. D. 2%. E. 5%.
Biology & Microbiology