The homeostatic maintenance and remodeling of bone structure depends on the balanced activity of ________.
Fill in the blank(s) with the appropriate word(s).
Answer: osteoclasts and osteoblasts
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The Drosophila homeotic genes typically contain the homeobox. The homeobox is a sequence of 180 nucleotides. The number of amino acids coded for by this sequence is
A. 30. B. 60. C. 90. D. 120 E. 180.
All of the following are TRUE of adaptive
traits EXCEPT a. they allow individuals to adjust to the environment. b. they spread faster through populations of asexually reproducing organisms. c. they spread faster through populations of sexually reproducing organisms. d. variety results from mixing of the genetic traits. e. all of these are true
The cell walls of fungi are composed of cellulose
____________________ Indicate whether the statement is true or false.
The active site of an enzyme is
A) the region of a substrate that is changed by an enzyme. B) the highly changeable portion of an enzyme that adapts to fit the substrates of various reactions. C) the region of an enzyme that attaches to a substrate. D) the region of a product that detaches from the enzyme.