List and briefly explain three properties of plasmids that allow them to be used as effective DNA
cloning vectors. What will be an ideal response?
Plasmids have an origin of replication, one or more restriction sites, and genes that identify successful
transformation.
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Which of the following is not an assumption of the Hardy-Weinberg principle?
a. no mutation b. no migration c. small population size d. random mating e. no selection
If you block histone deacetylase, what effect would you expect to see on transcriptional activity?
What will be an ideal response?
Which of the following processes does not generate genetic variation during sexual reproduction?
A) Crossing over B) Independent assortment C) Random fertilization D) All of the processes above generate genetic variation
Which of the following occurs during forced expiration?
a. The alveoli inflate. b. The ribs move upward. c. The internal intercostal muscles contract. d. The floor of the thoracic cavity moves downward. e. The pressure increases in the thoracic cavity.