Which is NOT part of the nitrogen cycle?
a. denitrification
b. deammonification
c. nitrogen fixation
d. ammonification
e. uptake by autotrophs
B
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Jacob and Monod were intellectually primed to draw the conclusions they did concerning regulation of the lac operon. In part, this was due to their fascination with mechanisms of enzyme regulation. They knew that the activity of some enzymes is regulated
when their reaction product binds to the enzyme, changing its shape and, therefore, its activity. This knowledge allowed them to easily make the intellectual leap to propose _____. A) the existence of the CAP binding site B) allosteric regulation of the repressor C) positive regulation of the lac operon D) the existence of the operator E) co-transcribed and co-regulated genes of bacterial operons
Blood, cartilage, and bone are types of ________ tissue
Fill in the blank(s) with correct word
The primary structure of a protein ultimately determines its three-dimensional structure.
Answer the following statement true (T) or false (F)
What exactly does transfer RNA (tRNA) transfer?
A) amino acids to the RNA polymerase during transcription B) carbohydrates throughout the cytoplasm during transcription C) nucleotides that are to be added to a growing polypeptide chain D) the two ribosomal subunits to the start sequence and initiates the start of translation E) amino acids to the ribosome during translation