Mutations in the p53 gene can lead to cancer by
A) causing the production of excessive amounts of relay proteins.
B) causing the production of a faulty protein that is no longer able to inhibit cell division.
C) promoting the expression of mRNA that can interact with DNA, resulting in new mutations.
D) increasing the production of growth hormones, which trigger faster cell cycles.
Answer: B
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Which statement correctly describes the X and/or Y chromosomes?
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Describe the process of atherosclerosis and discuss two possible complications for the affected individual. What will be an ideal response?
Flattened sacs of internal membranes associated with photosynthesis are called
A. cristae. B. the stroma. C. thylakoids. D. photosystems. E. chloroplasts.
Breast feeding is an example of
A) Natural active immunity B) Artificial passive immunity C) Artificial active immunity D) Natural passive immunity