An example of gene regulation at the level of translation is the ability of the Bicoid protein to repress translation of caudal mRNA and for Nanos protein to repress translation of hunchback mRNA
A. true
B. false
A
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Acrosomes contain nutrients for the developing sperm cells, and they also secrete hormones and other
signaling molecules. ____________________ Indicate whether the statement is true or false.
In a negative feedback system, ____
a. the response of the integrator is aligned with the output of the sensor b. a sensor brings the system back to the setpoint c. a steady state condition cannot be identified d. the response of the integrator is opposite the output of the sensor e. the resulting outcome is always greater than the input
Chromatin is
A. immature nucleoplasm. B. a cytoplasmic organelle. C. the arrangement of proteins. D. uncoiled DNA of a chromosome.
The Island of Krakatau has provided an ideal setting for studies of which kind of succession?
A) primary B) secondary C) tertiary D) quaternary