What is the default for an operon that makes catabolic enzymes?
What will be an ideal response?
Answer: Usually off
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You are "living off the grid" meaning that you are not using any public utilities: no water supply, sewer connection, natural gas, or electricity. You do have a septic tank, whose pipe carries sewage underground where it is released over a wide area, the leaching field. There is also a small pond out there that you have stocked with fish. However, you notice that the fish are floating dead in the water, and the pond has a green scum on it. What happened?
A. There are not enough nutrients in the water, so the fish died. B. Chemical toxins from your septic tank cleaner have killed the fish. C. There is oxygen depletion in the pond due to the leakage of phosphates and other compounds from your septic tank. D. The fish died due to a lack of calcium, which then caused the algae to overgrow.
The rib cage is also called the _________ cage.
Fill in the blank(s) with the appropriate word(s)
Which generation of pea plants yielded the most significant results during Mendel’s experiments?
a. P0 b. F1 c. F2 d. F3
Which of the following was proposed by Mendel after working with garden pea plants?
a. The physical observation of a recessive trait means that the organism lacks any dominant versions of that characteristic. b. An organism’s dominant traits disappear in the offspring of a hybridization. c. The physical observation of a dominant trait means that the organism has two recessive versions of that characteristic. d. An organism’s dominant and recessive traits blend to form a codominant allele.