Describe the mutagenic action of the following two mutagens: 5-bromouracil and ultraviolet light
What will be an ideal response?
The mutagen 5-bromouracil is an analog of thymine, which anomalously pairs with guanine. Ultraviolet light causes thymine dimers.
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Psilotum lacks
(a) roots. (b) a mechanism to take up water and minerals. (c) vascular tissue. (d) alternation of generations.
You are feeling ill, so you visit a physician. The physician takes your temperature, blood pressure, and pulse and orders blood tests and urine analysis to determine more about your condition. The results of all of these observations and tests will help the physician assess why your body is temporarily out of "normal" conditions, or
A. adaptation. B. growing ability. C. natural selection. D. organism level of complexity. E. homeostasis.
A ________ diagram plots each species in a community, beginning with the most abundant and ending with the least abundant, along the x-axis, with the corresponding value of relative abundance on the y-axis
Fill in the blank(s) with correct word
The MIC is the _____ of a drug that is required to inhibit growth of a microbe.
A) standard dose B) largest concentration C) smallest concentration D) lowest dilution