Describe the major cellular and molecular events that mark the entry of mitosis from G2
What will be an ideal response?
condensation of chromatin to form chromosomes, breakdown of the nuclear membrane, alterations in the cytoskeleton, formation of an active CDK1/cyclin B complex
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The rapid expansion of angiosperms late in the
Mesozoic era appears to be related to their coevolution with a. dinosaurs. b. gymnosperms. c. insects. d. mammals. e. birds.
Which of the following does not illustrate the use of universal precaution methods in the handling of patients and body substances?
A. Healthcare worker with active, open lesions handling patients B. Mask and gloves C. Proper disposal of needles D. Sterilizing or disinfection of dental hand pieces E. Hand washing
Myasthenia gravis disease arises from the production of autoantibodies against
A. sodium pump proteins in the cell membrane. B. acetylcholine receptors on skeletal muscle. C. myelin sheath cells of the nervous system. D. cells in thyroid follicles. E. acetylcholine receptors on smooth muscle.
The genus of pathogenic cocci responsible for a wide range of human disease and whose members grow in chains is (Staphylococcus/Streptococcus/Enterococcus)
What will be an ideal response?