A eukaryotic ribosome stalled by a non-stop mutation can be rescued by:
A. nonsense-mediated mRNA decay.
B. non-stop mRNA decay.
C. recruitment of release factors.
D. degradation of the ribosome.
B
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Which process is performed by bacteria in mutualistic relationships with legumes?
a. ammonification b. biological magnification c. denitrification d. nitrification e. nitrogen fixation
The inner lining of the uterus that is shed at menstruation if fertilization has not occurred is called the ____
a. cervix b. endometrium c. oogonium d. chorion e. epididymis
Why doesn't your immune system attack your own cells?
What will be an ideal response?
Foraging bees communicate with other bees in a waggle dance to give information about the food. The important cue in the dance that conveys information about the required flight direction to the food source relative to the hive-sun direction is the
A. angle between the waggle run in reference to the hive-sun angle. B. angle between the waggle run in reference to the direction north from the hive. C. angle between the waggle run and the vertical axis within the hive. D. angle between the food source and the hive in reference to the sun. E. speed of the waggle dance.