Through genetic analysis, Jacob and Manod were able to make predictions about the lac operon. However, which of the following techniques confirmed their predictions?
A) PCR
B) CRISPR
C) crystal structure analysis
D) DNA sequencing
E) recombinant DNA technology
Answer: C
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The signaling molecule involved in juxtacrine cell signaling is:
A. a small soluble peptide. B. a neurotransmitter. C. a transmembrane protein. D. a growth factor.
Four of these factors play a role in phylogeny. Which one does not?
a. number of digits b. DNA sequence for a gene c. amino acid sequence of an enzyme d. number of petals e. number of individuals
Even if people want to use sustainable energy sources and technologies, several barriers can limit their use. Which of the following is NOT a potential barrier to more widespread use of sustainable development practices or technologies?
a. sustainable energy can be much more expensive to produce than nonrenewable options b. construction and use of sustainable energy technologies can use hazardous chemicals or generate hazardous wastes that need to be carefully disposed of to avoid polluting the environment c. construction fo sustainable energy production facilities can destroy habitat d. the technology for energy production and harvesting from some sustainable sources still needs to be optimized e. all of the above are potential barriers to use of sustainable practices
The appearance of a wart on the genitalia is a sign of infection with (chlamydia/herpes/papilloma) virus
What will be an ideal response?