Following a properly-performed Gram stain, gram-positive bacteria will appear as pink or red cells.
Answer the following statement true (T) or false (F)
False
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Reciprocal innervation of reflexes between antagonistic muscle pairs
a. is the usual basis of coordinated contractions. b. is the means by which rods prevent cones from being stimulated. c. refers to the lens adjustments that bring about precise focusing onto the retina. d. explains the mechanism for the operation of the calcium pump. e. is a protective function only.
In the tryptophan operon, low level of tryptophan nutrient results in the following events EXCEPT
A) that the synthesis of leader peptide is stalled. B) continuous transcription of the trp operon. C) that tryptophan repressor cannot bind to trp operator in the trp operon. D) synthesis of polycistronic mRNA of tryptophan structural genes. E) that regions 3 and 4 form a stem-loop.
Match the types of RNA with their function.
miRNA, mRNA, tRNA, rRna 1. Carries amino acids to the growing peptide chain during translation 2. Contains the genetic information decoded during translation 3. Components of ribosomes 4. Regulates gene expression
NAD and FAD act as _____ carriers
Fill in the blank(s) with the appropriate word(s).