Practice Questions

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#Question id: 380

The Henderson-Hasselbalch equation:

#XL - S Microbiology

allows the graphic determination of the molecular weight of a weak acid from its pH alone.
is equally useful with solutions of acetic acid and of hydrochloric acid.
relates the pH of a solution to the pKa and the concentrations of acid and conjugate base.
does not explain the behavior of di- or tri-basic weak acids

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TLS Online TPP Program

#Question id: 3812

#XL - Q Biochemistry

The mechanism of DNA replication is studied in an E. coli replication fork. Which is a characteristic of this replication fork?

TLS Online TPP Program

#Question id: 3848

#XL - Q Biochemistry

are small molecules that function as adapters between amino acids and codons.

TLS Online TPP Program

#Question id: 3849

#XL - Q Biochemistry

Which of the following is short 20 to 22-nucleotide single-stranded RNAs that block the expression of complementary or partially complementary mRNAs.

TLS Online TPP Program

#Question id: 3850

#XL - Q Biochemistry

The RNA molecule produced in RNA synthesis is:

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#Question id: 3851

#XL - Q Biochemistry

Transcription is initiated at sites called:

TLS Online TPP Program

#Question id: 3852

#XL - Q Biochemistry

Which of the following is NOT one of the three stages of transcription?