Thalidomide was given to pregnant women from 1957–1961 to help relieve the symptoms of morning sickness. Thalidomide binds to and inactivates the protein cereblon, which is important in limb formation. If a woman took thalidomide during the _____ period of her baby's development, it could result in stunted growth of its limbs.
A. preembryonic
B. fetal
C. prezygotic
D. embryonic
E. delivery
D. embryonic
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Which of the following best represents the path of electron flow that occurs during photosynthesis?
A. H2O?P680?Final Electron Acceptor?Electron transport chain?P700 B. H2O?P680?Final Electron Acceptor?P700?Electron transport chain C. P680?H2O?Final Electron Acceptor?P700?Electron transport chain D. P680?Final Electron Acceptor?H2O?Electron transport chain?P700 E. P680? Electron transport chain?Final Electron Acceptor?H2O?P700
What benefits would cause an athlete to risk taking erythropoietin or a similar drug?
What will be an ideal response?
Organisms that grow well at 0°C and have optimum growth temperatures of 15°C or lower are called
A. frigiphiles. B. mesophiles. C. psychrotrophs. D. psychrophiles.
List at least three levels or types of genetic regulation in eukaryotes
What will be an ideal response?