What molecule accepts the electrons at the end of the electron transport chain during aerobic respiration?
a. Hydrogen
b. Glucose
c. Oxygen
d. Phosphate
e. Carbon
c
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Which one of the following statements about the use of synthetic polynucleotides in cracking the genetic code is not true?
A. Poly(A) RNA directs the synthesis of only polylysine in vitro. B. Particular codons are generated in predictable ratios with random RNA polymers containing specific ratios of different nucleotides. C. Three different amino acids are incorporated into peptides when synthetic polymers of only one nucleotide are used to synthesize the RNA polymer. D. The codon table was completed by using RNA polymers of defined sequences.
Environmental factors that may affect enzyme activity include
A. temperature. B. pH. C. salt. D. temperature, pH, AND salt.
The organism in the accompanying figure belongs to which group?
a. excavates b. alveolates c. stramenopiles d. green algae e. amoebozoans
MALDI-mass spectrometry was used to identify a protein from preserved T. rex samples. Briefly describe how this was done
What will be an ideal response?