Which of the following is associated with the PNS but not the CNS?
A. myelin sheath
B. dendrite
C. Schwann cells
D. node of Ranvier
E. axon
Answer: C
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Indels:
A. are mutations that arise due to large duplications of DNA. B. are caused by aberrant recombination or by template slippage during replication. C. are mutations in which one base pair is exchanged for another. D. are mutations that inactivate oncogenes, which cause cells to lose control of cell growth. E. are the result of replication errors.
Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?
A. Lysosome B. Chloroplast C. Mitochondrion D. Golgi apparatus E. Endoplasmic reticulum
Now that we know the entire gene sequence of humans, what is the next step for scientists?
1.Determine the function for all the genes. 2.Determine the mutations in the genome that cause disease. 3.Create methods to eliminate bad or disease-causing genes. 4.Determine the DNA fingerprints of humans and chimps to help in the treatment of disease.
Entamoeba histolytica can cause keratitis if it is introduced through an abrasion in the conjunctiva
Indicate whether the statement is true or false