What is the minimum amount of time necessary to completely replicate a mammalian genome? What is the actual time of replication?
What will be an ideal response?
Ans: Given the speed of replication and the number of origins in the genome, replication of the genome could take as little as one hour. It actually takes about 6 hours, suggesting that only about 15% of replicons are active at a time.
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The effect of smoking on the respiratory tract includes
a. reduced production of mucus. b. increased development of cells. c. immobilization of ciliated cells. d. destruction of white blood cells that patrol the respiratory tract. e. both immobilization of ciliated cells and destruction of white blood cells that patrol the respiratory tract.
Mucus traps pathogens that are later coughed or sneezed away. What form of body defense applies to this example?
A) first line of defense B) second line of defense C) third line of defense D) antibody-mediated immunity
Compare and contrast the following terms: homology and homoplasy. Provide two examples of each. What will be an ideal response?
Life first evolved in and the earliest forms of life lived in ________
Fill in the blank(s) with correct word