The ________ is the development of high-yield varieties of crops and the use of modern cultivation methods, including the use of farm machinery, fertilizers, pesticides, and irrigation
Fill in the blank(s) with correct word
green revolution
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Erythema migrans is associated with typhus
Indicate whether the statement is true or false.
An organism with a chromosome number of n=7 is said to be haploid
a. True b. False
Which of the following is a technique for separating charged molecules based on size and charge?
a. cloning b. recombinant DNA c. plasmid configuration d. gel electrophoresis
When membrane-bound receptors like HER2 bind to molecules outside of a human cell, they must move laterally within the bilayer and also bind to a second HER2 receptor, forming a dimer (2-part molecule), in order for the signal to be further transferred inside the cell through the membrane. This is possible because the cell membrane is
A. a selectively permeable barrier. B. both selectively permeable and a fluid mosaic. C. hydrophobic. D. rigid like a cell wall. E. a fluid mosaic.