When both glucose and lactose are available in the growth medium, the presence of which molecule is capable of inducing basal transcription of the lac operon?
What will be an ideal response?
cAMP
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If the set point of the hypothalamus were to suddenly rise to 40°C (as in the induction phase of a fever), what would the initial response of the body be?
A. glands release sweat B. muscles contract to cause shivering C. nothing D. body temperature drops E. blood vessels dilate
photosynthesis releases _______________________.
What will be an ideal response?
The plant response in which stems grow upward and roots grow downward is called
A. photoperiodism. B. thigmotropism. C. phototropism. D. gravitropism.
We have a family of genes that code for different forms of myosin. How different do you think these gene sequences are from each other?
A. completely different, no identical base sequences B. completely the same, identical base sequence C. some differences in sequence, some similarities