Using the 20 standard amino acids how many tripeptides containing three different amino acids can be made?
A) 60
B) 400
C) 6840
D) 8000
C
You might also like to view...
High temperatures and pressure convert
A. igneous rock into sedimentary rock. B. sedimentary rock into metamorphic rock. C. igneous rock into minerals. D. metamorphic rock into sedimentary rock. E. metamorphic rock into igneous.
At what time of day is an air-mass thunderstorm more likely to develop?
A) midmorning B) midnight C) midafternoon D) pre-dawn
The hind wings of the Io moth resemble eyes of a much larger animal. What is this called?
A. echolocation B. deceptive behavior C. mutualism D. deceptive looks E. chemical warfare
Different isotopes are useful in different dating processes. Suppose we wished to determine the age of an object which we suspect to be approximately 10,000 years old. An isotope with which of the following half-lives would be most appropriate for this project?
A) 50 years B) 500 years C) 5,000 years D) 50,000 years