Proteins and RNA molecules that are needed in the cell, at about the same level under all growth conditions, require constitutive expression
Indicate whether the statement is true or false.
Answer: TRUE
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A plant will begin flowering in response to changes in length of daylight, temperature, and light quality. This is an example of which unifying principle of life?
A. Plants conduct photosynthesis. B. Living organisms maintain homeostasis. C. Living organisms interact with their environment. D. Living organisms grow and develop. E. Populations of organisms evolve from one generation to the next.
Which of the following communication signals
is mismatched? a. tactile; honeybees b. acoustical; frogs c. visual; baboons d. chemical; termites and honeybees e. chemical; fireflies
If the connective tissue in the ventricles, called ________, gives way, blood may go backward through the AV valves
Fill in the blank(s) with correct word
Retroviruses, such as RNA tumor viruses, use __________ to make DNA from their RNA genomes
a. DNA polymerase
b. DNA-dependent RNA polymerase c. RNA polymerase d. primase e. reverse transcriptase