The isoelectric point (pI) is:
A. the pH at which a protein has a net positive charge.
B. the pH at which a protein has a net negative charge.
C. the pH at which a protein has a net charge of zero.
D. the distance a protein having a positive charge will travel in gel electrophoresis.
E. the distance a protein having a negative charge will travel in gel electrophoresis.
C
You might also like to view...
Which of the following methods sterilize the materials?
A. Pasteurization B. High-temperature-short-time pasteurization (HTST) C. Ultrahigh-temperature (UHT) method D. None of these are sterilization methods.
Where is most the Earth’s phosphate found?
a. ocean water b. aquifers c. the atmosphere d. rocks and sediments e. plants
Speciation:a
maintains an intermediate phenotype in a stable environment. b. is the formation of a new species from an ancestral population. c. only occurs when a population is geographically isolated. d. is a change in allele frequencies in a population. e. is the end result of macroevolution but not microevolution.
Which process results in genetic recombination, but is separate from the process wherein the population size of paramecium increases?
A) budding B) meiotic division C) mitotic division D) conjugation E) binary fission