Which of the following would you expect of a eukaryote lacking telomerase?
A) a high probability of somatic cells becoming cancerous
B) an inability to produce Okazaki fragments
C) an inability to repair thymine dimers
D) a reduction in chromosome length in gametes
D
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Which of the following statements about the filtration barrier of the glomerulus is false?
A. The endothelial cells of the capillaries have foot-like processes that interlock with the surrounding podocytes. B. The filtration barrier is made up of three layers. C. The capillaries in the kidney are more permeable than capillaries elsewhere in the body. D. The filter allows the passage of small molecules, but blocks the passage of cells and proteins. E. None of these statements about the filtration barrier of the glomerulus is false.
Polyketide antibiotics are broad-spectrum antibiotics
What will be an ideal response?
Many types of cancer are known to overexpress the receptor protein tyrosine kinase. Which molecular technique can be used to reduce expression of an oncogene in vitro?
A) PCR B) DNAse sensitivity assay C) RNAi D) Southern blotting E) western blotting
Which of the following must occur in order for a photon to excite an electron in a pigment molecule?
a. The photon must match the energy difference between the ground state and one of the excited states. b. The photon must have lower energy than the electron at the ground state. c. The photon must have lower energy than the energy of the electron at the excited state. d. The photon must have higher energy than the electron at the ground state.