"Special pair" is the name given to the ________ in the photochemical complex of the purple bacteria
A) two bacteriochlorophyll a molecules
B) two bacteriochlorophyll b molecules
C) two quinones
D) two reaction centers
Answer: A
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To remove noncoding sequences in the pre-mRNA of eukaryotes, multiple snRNPs combine with proteins to form a larger complex called the ___________ .
A. 5' cap B. introsome C. ribosome D. spliceosome E. 3' poly-A tail
What is true of a fossil that is classified as a "transitional form"?
A. It has all of the traits of its ancestors and all of the traits of its descendants. B. It has some of the traits of its ancestors and all of the traits of its descendants. C. It has all of the traits of its ancestors and some of the traits of its descendants. D. It has some of the traits of its ancestors and some of the traits of its descendants.
Amoebic dysentery is caused by
a. Ulva. b. Volvox. c. a desmid. d. Entamoeba.
Which of the following hormones is different from the others based upon the extent of its target cells?
a. corticotropin b. luteinizing hormone c. somatotropin d. thyrotropin e. follicle-stimulating hormone