Gametophyte generations produce ________.
Fill in the blank(s) with the appropriate word(s).
gametes
Gametophyte generations produce gametes.
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During every energy transformation, it can be said that
a. the entropy of the universe increases. b. the entropy of the universe decreases. c. there is an increase in the free energy of the universe. d. there is a change in the total energy of the universe. e. the system becomes more organized.
DNA microarrays use enzymes to convert mRNA obtained from the cell into cDNA. This cDNA is hybridized with known DNA from specific genes isolated from the organism. If hybridization occurs, what does this mean?
A. It means the DNA has transformed into another type of DNA and the corresponding genes are present in the cell. B. It means the DNA has not transformed into another type of DNA and the corresponding genes are not present in the cell. C. It means the cDNA has bound to complementary DNA on the microarray, indicating that the corresponding gene is being expressed in the cell. D. It means the cDNA has not bound to the complementary DNA on the microarray, indicating that the corresponding gene is not being expressed in the cell.
Class II MHC genes encode glycoproteins on the surface of cells that bind with antigen from intracellular pathogens. Indicate whether the statement is true or false
Once the gene that confers blight resistance has been identified, it must be _______________
a. inserted into a plasmid b. translated and transcribed c. modified d. injected into the nonresistant plant cells