Choose the letter of the best match from the following:A. abscisic acidB. trichomesC. aquaporinD. endodermisE. stomaPore in leaves that regulates gas exchange.
Fill in the blank(s) with the appropriate word(s).
Answer: E
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Which molecules are not part of the closed promoter complex?
A. RNA polymerase B. Transcription factors C. Double helix DNA D. Single-stranded DNA
The duration of an action potential is approximately five ____
a. microseconds b. milliseconds c. centiseconds d. seconds e. nanoseconds
A person produces a mutated C3 protein resulting in C3a failing to stick, but enzymatic function is not affected. Complement activation in this individual would result in which of the following?
A. MACs would form but inflammation would not occur. B. Phagocytes would not be attracted to the site of infection. C. Phagocytes would be attracted to the site of infection but phagocytosis would be impaired. D. Phagocytosis would be facilitated but chemotaxis by phagocytes would be reduced. E. MACs would not form.
Because all genes are normally present, chromosomal inversions don't generally present problems for an individual. However, the production of gametes can be affected when crossing-over occurs during