Which of the following bacteria is not a common cause of neonatal meningitis?
A) Escherichia coli
B) Listeria monocytogenes
C) Neisseria meningitidis
D) Streptococcus agalactiae
C) Neisseria meningitidis
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An intermediate in the creation of DNA nucleotides is ribose 5-phosphate, shown here. What enzymatic activity is needed to ready ribose 5-phosphate for use in DNA nucleotide synthesis?
A. DNase B. reductase C. oxygenase D. RNase E. RNA polymerase
In the conversion of electrical energy to light
energy in a light bulb, how much is lost as heat energy?
a. 5 percent b. 15 percent c. 55 percent d. 75 percent e. 95 percent
Although bacteria can be used to produce proteins for therapeutic uses, what can be a disadvantage to using a prokaryotic system?
A) Proteins may not be post translationally processed correctly. B) Transcripts from eukaryotic open reading frames are degraded quickly in prokaryotic cells. C) Some prokaryotic promoters do not work well to transcribe eukaryotic open reading frames. D) The structures that eukaryotic mRNAs fold into are frequently used as rho termination signals.
A population was surveyed to determine the percentage of individuals with detached earlobes and attached earlobes. 16% of the population was found to have attached earlobes, a trait coded for by a recessive allele. Calculate the allele, genotype and phenotype frequencies of the population, assuming Hardy-Weinberg equilibrium is maintained.
What will be an ideal response?