Phanerochaete chrysosporium
A. is a wood-decay fungus.
B. is a lichen that serves as food for reindeer.
C. is the cause of lung disease.
D. is an hallucinogenic mushroom.
E. is a rust that causes oak trees to shed their leaves prematurely.
A. is a wood-decay fungus.
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The main limitation of a drug that treats disease by altering chromatin remodeling is that
A) the changes would be passed on to daughter cells. B) it would change the number of copies of a gene that people inherit. C) it would change the expression of many other genes. D) the changes would be epigenetic.
The control in an experiment
a. makes the experiment valid. b. is an additional replicate for statistical purposes. c. reduces the experimental errors. d. minimizes experimental inaccuracy. e. allows a mixed group of comparisons among different organisms for the experimental group.
Secretion of GnRH is inhibited by all EXCEPT
a. secretions from Sertoli cells. b. elevated testosterone levels. c. secretion of inhibin. d. normal sperm production. e. secretions from Leydig cells.
Which of the following is not a pair of homologous structures?
a) wing of a house fly and the eye of a dog b) tail of a cat and the tailbones in humans c) the antenna of a butterfly and the antenna of a moth d) the front leg of a horse and the flipper of a seal e) bird wing and the human hand