People who carry and may spread pathogenic organisms without any overt symptoms of illness are called
A. primary infections.
B. secondary infections.
C. mutualists.
D. carriers
D
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Analysis of a bacterial gene indicates that 24% of the nucleotides in the coding strand contain the base A, 18% contain the base T, 26% contain the base G, and 32% contain the base C. What percent of the nucleotides in the mRNA transcribed from this gene will contain the base U? (Enter your answer as a number only without the percent sign, e.g. enter 5 not5%.)
What will be an ideal response? Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about DNA and RNA? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
If the nucleotide sequence in a DNA template strand is GGCTTAACCATT; the complementary mRNA strand will have the sequence ____________________
Fill in the blank(s) with correct word
Sponges, cnidarians, and flatworms all lack which characteristic found in most other animal groups?
A) the blastula embryo B) a coelom C) motility D) symmetry E) tissues
Why is refrigeration a considered short-term method of storing bacteria?
A. Refrigeration slows metabolism but does not stop it. B. Refrigeration causes cellular damage. C. Refrigeration dehydrates cells. D. Refrigeration does not slow metabolism. E. None of these, refrigeration is not a suitable storage method for bacterial