Practice Questions

TLS Online TPP Program

#Question id: 4125

Which of the following are features of the wobble hypothesis?

#Section 3: Genetics, Cellular and Molecular Biology

A naturally occurring tRNA exists in yeast that can read both arginine and lysine codons.
A tRNA can recognize only one codon.
Some tRNAs can recognize codons that specify two different amino acids, if both are nonpolar.
The “wobble” occurs only in the first base of the anticodon.

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TLS Online TPP Program

#Question id: 3766

#Section 3: Genetics, Cellular and Molecular Biology

Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight, and mutations to the DNA in their skin cells are left uncorrected. Why are the mutations not corrected in individuals with this disorder?

TLS Online TPP Program

#Question id: 13032

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

In SDS-PAGE, protein sample is first treated with detergent sodium dodecyl sulfate (SDS), in order to

TLS Online TPP Program

#Question id: 48

#Section 2: General Biology

Which of the following statements regarding enantiomers true?

TLS Online TPP Program

#Question id: 27216

#Section 5: Bioprocess Engineering and Process Biotechnology

Mechanical agitation is not required in the following: