A pathway for cell growth control is conserved between Drosophila and humans, indicating that the
pathway is _______.
a. also found in prokaryotes d. at least 3.8 billion years old
b. also found in all animals e. at least 8 million years old
c. at least 800 million years old
C
You might also like to view...
Declining amphibian populations are
correlated with a. habitat loss. b. introduction of new species. c. long-term changes in climate. d. fungal infections and parasitic diseases. e. all of these.
Genome-wide association scans compare the proteins of individuals with a particular disease to
individuals without the disease. _________________ Indicate whether the statement is true or false.
Totipotent nuclei are capable of:
a. controlling the expression of other genes in the nucleus. b. directing normal development of an organism. c. causing cells to lose the ability to differentiate. d. undergoing unlimited nuclear divisions. e. stopping the cell cycle at will.
El Niño-Southern Oscillation has resulted in:
a. global weather changes. b. increases in the fish populations off South America. c. cooling of surface waters of the East Pacific. d. upwelling in many places. e. global warming.