Prokaryotes are classified into _________ domain(s).
a) 1
b) 6
c) 8
d) 4
e) 2
Answer: e) 2
You might also like to view...
You are studying an individual with very low levels of insulin in her blood. Further analysis indicates that cells of her pancreas are producing normal levels of this protein, but it is accumulating in the cytoplasm rather than being secreted from the cells. Which hypothesis makes the most sense to explain this observation?
A. A small deletion has removed the nucleotides that code for the signal sequence at the amino terminus of the protein. B. A missense mutation has caused premature termination during translation of this protein. C. A chromosomal segment that includes the gene for insulin has been inverted. D. A two-base deletion near the middle of the gene has altered the reading frame during translation of the protein. E. A missense mutation has altered the ribosome-binding sequence at the 5' end of the mRNA. 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 transcription and translation? Consider Possibilities · Consider the different answer options. Which can you rule out? 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?
Which taxonomic tool would scientists use if they wanted to determine if an outbreak of food poisoning was caused by a particular strain of a pathogen?
A) fluorescence in situ hybridization B) DNA:DNA hybridization C) multilocus sequence typing D) fatty acid methyl ester analysis
The layer of the vertebrate eye where photoreceptors are located is the:
a. lens b. cornea c. pupil d. iris e. retina
A tuna is a ___ fish
a. ray-finned b. lobe-finned c. cartilaginous d. jawless e. invertebrate