You are classifying an organism and trying to determine to which domain it belongs. The organism is unicellular and was isolated from a very unusual environment. This organism probably belongs in which domain?
A) Eukarya
B) Archaea
C) Bacteria
D) None of the domains above is correct.
B
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TREX (transcription export) is responsible for:
A. splicing of mRNA. B. transport of mRNA. C. editing of mRNA. D. degradation of mRNA.
The colinearity rule describes
A. the spatial arrangement of homeotic genes along the chromosome. B. the timing of expression of homeotic genes. C. the long stretches of DNA between homeotic gene complexes. D. the parallel arrangement of homeotic genes between different chromosomes. E. the spatial arrangement of alpha helices in proteins encoded by homeotic genes.
Which of the following is an inorganic charged
particle found in soil?
a. humus b. clay c. sand d. silt e. all of these are charged inorganic soil particles
Many psychoactive drugs affect the
a. thalamus. b. pituitary gland. c. pineal body. d. hypothalamus. e. corpora quadrigemina.