Adult stem cells have limited therapeutic potential
A) because they are fully differentiated.
B) because they lack a complete set of genes.
C) due to their excessive numbers in tissues.
D) because their developmental potential is limited to certain tissues.
Answer: D
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A sea star suffers from an infection that affects its ampullae. Due to the infection, the ampullae no longer function. What do you predict will be the effect on the sea star?
A. No noticeable effect will occur. B. The sea star will be unable to reproduce. C. The sea star will be unable to extend its tube feet. D. The sea star will be unable to store energy.
Which of the following hormones can make a person susceptible to infection when administered for too long as a drug?
A) glucagon B) growth hormone C) glucocorticoids D) antidiuretic hormone
____ is a responsive process.
A. Waste elimination B. Adaptation C. Reproduction D. Coordination
Put the following steps of DNA replication in chronological order.
1. Single-stranded binding proteins attach to DNA strands. 2. An RNA primer is created. 3. Primase binds to the origin. 4. DNA polymerase begins to synthesize DNA 5. Hydrogen bonds between base pairs of antiparallel strands are broken. A. 5, 1, 3, 2, 4 B. 3, 1, 5, 4, 2 C. 1, 5, 3, 4, 2 D. 3, 5, 1, 2, 4