Certain cell types in humans, such as skeletal muscle cells, have several nuclei per cell. Based on your
understanding of mitosis, how could this happen?
a. The cell undergoes repeated cytokinesis but not mitosis.
b. The cell undergoes repeated mitosis with concomitant cytokinesis.
c. The cell undergoes repeated mitosis but not cytokinesis.
d. The cell undergoes anaphase twice before entering telophase.
e. The cell goes through multiple S phases before entering mitosis.
C
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The use of ________ to treat drinking water, which began in 1913, reduces the incidence of waterborne diseases
A) coagulation B) chlorination C) filtration D) UV irradiation
DNA is replicated by a process called ____________________
Fill in the blank(s) with the appropriate word(s).
If asked to sort cards of immune responses into boxes marked "active immunity" and "passive immunity," which of the following cards would go into the "passive immunity" box?
A. antibodies produced from a vaccine, or a person receiving an injection of antibodies B. a fetus acquiring antibodies through the placenta, or a person receiving an injection of antibodies C. a person receiving an injection of antibodies D. a fetus acquiring antibodies through the placenta E. antibodies produced from a vaccine
Organismal genetics observes the heredity of the whole organism.
a. true b. false