Which of the following is true?
A) Mutations that inactivate tumor suppressor genes are important in cancer.
B) Cancer is a single disease with one underlying molecular cause.
C) Uncontrolled cell growth alone is sufficient for the development of cancers.
D) Cancer is a single disease resulting from a common set of mutations.
Answer: A
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Most of the water taken up by a plant is _____
A) used as a solvent B) used as a hydrogen source in photosynthesis C) lost during transpiration D) converted to carbon dioxide E) used to keep cells turgid
If the population of flowers illustrated in the accompanying Punnett square is in genetic equilibrium, the frequency of
the homozygous dominant genotype in the new generation will be ____. a. p2 b. 2pq c. p2 + q2 d. q2 e. p2 + 2pq
Dense, regular tissues that connect bone to bone are called
a. muscles. b. cartilage. c. ligaments. d. tendons. e. organelles.
Proteins that recognize unfolded polypeptides and help them fold into their proper conformations are called ________.
Fill in the blank(s) with the appropriate word(s).