Contrast negative (repressor) and positive (CAP) control in the lac operon
What will be an ideal response?
Under negative control, transcription of the structural genes is shut down by a repressor protein until inactivated by the inducer (allolactose). Under positive control, transcription of the structural genes is shut down by the inducer (CAP).
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When two traits are analyzed separately, then the frequencies of each are combined to yield the observed phenotypic ratios, this confirms the principle of ____________________
Fill in the blank(s) with correct word
Which of the following is not an example of exponential growth?
a. a savings account that earns 2.5% interest each year for 10 years b. the economy of a country that grows by 2% each year for 15 years c. a child who saves one dollar each week for 10 years d. bacteria that double their cell numbers every 30 minutes e. a J- shaped curve
One of the direct products of deamination is urea. Indicate whether the statement is true or false
Arthropods can serve as a reservoir for all of the following diseases EXCEPT
A) plague. B) brucellosis. C) epidemic typhus. D) yellow fever. E) malaria.