Although SSU rRNA gene sequencing has been fruitful in distinguishing between domains, recent phylogenetic approaches of sequencing ________ genes have revealed Eukarya-specific evolutionary histories
a. ATPase
b. RNA polymerase
c. tubulins
d. ATPase, RNA polymerase, and tubulins
Answer: D
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The unique characteristics of ribosomes include
_____ composition of two subunits. _____ an RNA composition. _____ the cytosol site where all ribosomal components are produced. _____ ribosomal proteins being produced in the cytosol. _____ ribosomes being made of proteins, lipids and carbohydrates.
Human population began to rise rapidly following the
A) Industrial Revolution. B) end of World War I. C) period known as the Black Death. D) end of the 20th century. E) end of the Ice Age.
Which of the following statements about ribosomes is false?
A) A ribosome consists of two subunits. B) Ribosomal subunits are made of proteins and ribosomal RNA. C) The ribosomes of prokaryotes and eukaryotes are the exactly the same in structure and function. D) Each ribosome has two binding sites for tRNA molecules.
Essential amino acids are amino acids that cannot be synthesized by an organism and so must be provided as nutrients
Indicate whether the statement is true or false