Health, 28.09.2019 13:10 jaureguilol1
What is the advantage of the circuit of fetal blood flow through the ductus arteriosus?
Answers: 1
Health, 22.06.2019 16:10
Which u.s. state is home to the fewest species of mosquitoes?
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Health, 23.06.2019 04:31
Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.
Answers: 3
Health, 23.06.2019 04:31
Which of the following processes within viral replication is the greatest source of genetic variation in rna virus populations? a) high mutation rate due to lack of proofreading of rna genome replication errors.b) transcription from the host cell rna polymerase introduces numerous mutations.c) capsid proteins from the host cell can replace the viral capsid.d) viral rna is translated by host cell ribosomes.
Answers: 1
Health, 23.06.2019 05:00
A74-year-old woman, who has been followed for the past 25 years for chronic obstructive pulmonary disease comes to the ed complaining of 48 hours of temperature to 38.6 c and worsening shortness of breath. she has a chronic productive cough, which has become more copious. on physical examination, she has rhonchi and increased fremitus in the posterior mid-lung field. a gram's stain reveals many epithelial cells and multiple gram-positive and gram-negative organisms; no neutrophils are seen. which of the following is the most likely organism causing the symptoms? - escherichia coli- haemophilus influenzae- klebsiella pneumoniae- mycobacterium tuberculosis- mycoplasma pneumoniae
Answers: 2
What is the advantage of the circuit of fetal blood flow through the ductus arteriosus?...
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