Genetic recombination allows bacterial cells to receive small amounts of ________ from other cells or from the environment.
A) protein
B) DNA
C) RNA
D) cytoplasm
B) DNA
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Gene expression in multicelled eukaryotic cells changes in response to _____
a. conditions outside the cell b. master gene products c. operons d. conditions outside the cell and master gene products
Explain how the number of valence electrons is related to the chemical properties of an atom. Use two specific
examples in your explanation. What will be an ideal response?
Which of the following best describes substances that enter a plant through the root system?
A) They are dissolved in water. B) They are obtained from the air. C) They are organic molecules. D) They are brought in through stomata.
Select the best response to the question. ?Which of the following patients are at high risk for developing ?Pneumocystis jiroveci? pneumonia (PJP)?
A) a patient who has had a liver transplant B) a patient with severe lung disease C) a patient who has had a myocardial infarction ("heart attack") D) a patient who has taken several different antibiotics in the past 3 months