Gene that promotes the cell cycle and prevents apoptosis; may become an oncogene through mutation.
What will be an ideal response?
proto-oncogenes
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Why do researchers think the first self-replicating molecule was RNA?
A) RNA is the only type of molecule that can catalyze a chemical reaction. B) RNA can carry information and catalyze chemical reactions. C) Self-replicating molecules of RNA exist today, in human cells. D) Fossil evidence of such a molecule was recently discovered.
In a human male, the saclike structure that contains the testes is the
A. epididymis. B. vas deferens. C. scrotum. D. sustentacular cells. E. seminal vesicle.
Arrange the following from most general (i.e., most inclusive) to most specific (i.e., least inclusive):
1. Natural selection 2. Microevolution 3. Intrasexual selection 4. Evolution 5. Sexual selection A) 4, 1, 2, 3, 5 B) 4, 2, 1, 3, 5 C) 4, 2, 1, 5, 3 D) 1, 4, 2, 5, 3 E) 1, 2, 4, 5, 3
The resolution of a microscope lens is a function of the lens' (aperture/color/contrast)
What will be an ideal response?