Diagram an atom of nitrogen (which consists of 7 protons, 7 neutrons, and 7 electrons). Be sure to indicate in your illustration the relative size, position, and charge of the subatomic particles
What will be an ideal response?
The diagram should be circular in nature with a centrally located circular nucleus. The larger, positively charged protons and neutral neutrons should be located inside the nucleus. The very tiny, negatively charged electrons should be located in shells around the nucleus in the following manner: two in the innermost shell, and five in the second shell.
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Which term refers to plants that complete their life cycle in two growing seasons?
a. perennials b. annuals c. monocots d. biennials e. eudicots
Knockin mice can be created using the Cre/loxP system. In this procedure, the loxP sites are used to
A) delete the neomycin-resistance marker gene. B) recombine the mutation into the genome. C) express Cre protein. D) flip the orientation of genomic DNA after the mutation is inserted.
Which of the following is(are) true concerning
tetanus? a. The pathogen spreads through the air. b. The pathogen is ingested through tainted canned food. c. The pathogen is a virus. d. A toxin blocks the release of GABA. e. All of these are true.
Which of the following is incorrect about complement?
A. It involves an alternate pathway. B. It involves a classical pathway. C. It is composed of at least 20 blood proteins. D. It only appears in the blood during a response to a pathogen. E. It acts in a cascade reaction.