Which of the following statements about tumor suppressor genes is false?
(a) Gene amplification of a tumor suppressor gene is less dangerous than gene amplification of a proto-oncogene.
(b) Cells with one functional copy of a tumor suppressor gene will usually proliferate faster than normal cells.
(c) Inactivation of tumor suppressor genes leads to enhanced cell survival and proliferation.
(d) Individuals with only one functional copy of a tumor suppressor gene are more prone to cancer than individuals with two functional copies of a tumor suppressor gene.
(b) Cells with one copy of a tumor suppressor gene should behave normally, because tumor suppressor genes generally work in a recessive manner.
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Reproductive success of an individual is known as:
A. variation. B. adaptive makeup. C. fitness. D. microevolution. E. macroevolution.
To prevent disastrous consequences, the eukaryotic cell cycle is controlled by:
a. the mitochondria. b. replication. c. environmental signals. d. a very detailed, rigid genetic program. e. a series of cell cycle checkpoints
Which of the following is most likely to cause genetic changes in a population that make it better adapted to its environment?
A) nonrandom mating B) natural selection C) genetic drift D) gene flow
A child has O type blood. The mother has AB blood type and the father has A blood type. Which is true?
a. This can't be biological mother b. This can't be biological father c. The children only have AB from these parent d. Neither of these can be the child's parents