According to the Centers for Disease Control (CDC),by the End

question 4

Multiple Choice

According to the Centers for Disease Control (CDC) ,by the end of September 2014,roughly 8,000 cases of whooping cough had been reported in California for that year;more than 250 patients (mostly infants and young children) were hospitalized with 58 of them requiring intensive care.Several other childhood diseases that were once common but then eradicated through high vaccination rates have returned since the antivaccination movement grew in the 1990s.The epidemiological data collected by CDC indicates this resurgence of childhood diseases is most likely the result of

• A)reduced herd/community immunity.
• B)reduced vaccine effectiveness.
• C)increased virulence of the pathogens causing these diseases.
• D)simply the increased number of people present in the United States.

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Definitions:

Codons

Triplets of nucleotides in mRNA that specify which amino acid will be added next during protein synthesis.

Amino Acids

Organic compounds that serve as the building blocks of proteins, each containing an amino group, a carboxylic group, and a unique side chain.

Naturally Occurring

Describes substances, phenomena, or processes that exist or happen in nature without human intervention.

Anticodon

A sequence of three nucleotides on transfer RNA that is complementary to a codon on messenger RNA, enabling the addition of specific amino acids during protein synthesis.