Network of DNA strands and associated proteins observed within a nucleus of a cell.
What will be an ideal response?
chromatin
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Instantaneous speciation (select all correct choices)
A. is, by definition, a type of sympatric speciation. B. is typically caused when hybridization between species produces fertile, viable offspring that are reproductively isolated from both parental species. C. often involves the multiplication of chromosome sets, or polyploidy. D. is relatively common in plants but not in animals. E. none of these
In a reversible reaction at equilibrium, the concentration of R (the reactant) is 3.0 mol/L and the concentration of P (the product) is 0.9 mol/L. At 25°C, what would be the Keq?
A) 1.5 B) 0.3 C) 1.0 D) 3.0 E) 37.5
Simple sequence repeats are
A) found only in coding regions of genes. B) sequences of 1 to 10 base pairs repeated a variable number of times in tandem. C) sequences that are 10 base pairs long or longer and found in several locations in the genome. D) members of a gene family.
Cellulose differs from starch in that
A) starch is formed by plants and cellulose by animals. B) most animals cannot break down cellulose, whereas starch is easily digested. C) starch is made of glucose monomers, whereas cellulose is made of fructose monomers. D) cellulose is highly branched, whereas starch is unbranched.