Are loss-of-function mutations more likely to be dominant or recessive?
What will be an ideal response?
recessive
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The stringent response in bacteria is transcriptional regulation coordinated with:
A. amino acid concentrations. B. availability of glucose. C. DNA damage. D. changes in pH.
You are in charge of water quality for your city's water treatment plant. Of the methods at your disposal, which will be the most efficient and cheapest method of determining the number of viable bacteria in the water coming out of your plant?
A. Direct counts using a microscope and a counting chamber. B. Using a Coulter counter machine. C. Performing serial dilutions of your samples and doing spread plate counts. D. Using membrane filtration followed by placing the membrane in a growth medium for colony counts after incubation. E. Biochemical analysis of secondary metabolites in the water that are given off by bacteria.
The plant hormones ____ appear to regulate the expression of genes associated with a plant's growth responses to
light.
a. salicylic acid b. brassinosteroids c. gibberellins d. jasmonates e. oligosaccharins
Answer the following statements true (T) or false (F)
1.Administering antivenom is a form of active immunity. 2.A vaccine could be prepared against a virus by allowing a patient to breathe viral coat proteins. This primary response would allow for a later, strong secondary immune response to the virus. 3.A baby receiving antibodies in breast milk from its mother is an example of passive immunity. 4.Innate immune responses involve antibodies. 5.A person is having an immune response to their flu vaccine by producing antibodies and memory cells. This is an example of passive immunity.