What does UGA specify? (Select all that apply.)

A) a stop signal in the universal genetic code
B) the amino acid tryptophan in human mtDNA
C) a stop signal in human mtDNA
D) formyl-methionine in mtDNA


A) a stop signal in the universal genetic code

B) the amino acid tryptophan in human mtDNA

Biology & Microbiology

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Proteins function ____

a. as energy carriers b. as the ‘backbone’ of the DNA molecule c. as component parts of enzymes d. in energy storage within the cell nucleus e. in transmission of genetic information

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Oxytocin is secreted from the _______

Fill in the blank(s) with correct word

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Which term refers to the place on a stem where one or more leaves are attached?

a. node b. internode c. lateral bud d. axil

Biology & Microbiology

Chemical analysis of a bacterial cell structure detects calcium dipicolinic acid. What is the identity of this structure?

A. endospore B. nucleoid C. capsule D. slime layer E. cell wall

Biology & Microbiology