Typically, one thinks of identical (MZ) twins being genetically identical. However, genomic differences do exist between MZ twins by epigenetic processes. What are epigenetic processes?
What will be an ideal response?
Epigenetic processes involve the chemical modification of DNA and associated histones.
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The theory of continental movement is called
a. plate tectonics. b. plate drift. c. seismology. d. fault line movement. e. sea floor spreading
In ecosystems, internal cycling is dominated by
A) global nutrient turnover. B) wet and dry deposition. C) decomposition and biological uptake. D) photosynthesis and weathering.
You purchase a black dog (B = black, b = brown; B is dominant to b) from a breeder who tells you that the dog is a purebred, and that she will forward its papers to you at a later date
You mate the dog with a brown dog of the same breed. If the dog you purchased was truly a purebred animal, what proportions of colors should you see in the offspring? A) 100% black B) 100% brown C) 50% black, 50% brown D) 25% black, 75% brown E) 75% black, 25% brown
Aneuploidy refers to an alteration in the number of particular _______.
Fill in the blank(s) with the appropriate word(s).