Bacteria hold their DNA is region inside of their outer membrane, What is this region called?
A) capsule
B) nucleoid
C) cell wall
D) flagella
E) fimbriae
Answer: B) nucleoid
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A graduate student is researching the spread of mosquito vectors and dengue fever into the southern United States. She has collected a substantial amount of data regarding the locations where the vector has been detected as well as the incidence of the dengue fever virus in both the vector population and in humans. What application would enable her to effectively illustrate patterns of vector and disease spread?
A. Geographic Information Systems B. DNA microarrays C. Remote sensing D. DNA fingerprinting
How can a researcher determine whether variation in a phenotypic trait is caused by environmental factors or by
genetic differences?
What will be an ideal response?There are how many different kinds of amino acids
in proteins? a. 3 b. 6 c. 12 d. 20 e. 28
The action of a new drug is unknown, so you test various aspects of eukaryotic cell processes looking for an effect. You notice that the survival of cells exposed to this drug is very low
Further analysis shows that some proteins and mRNAs are much longer than they should be. One hypothesis is that the drug interferes with A) transcription termination signals. B) spliceosome activity. C) ribosomes. D) nucleoli. E) either transcription termination signals or spliceosome activity.