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TLS Online TPP Program

#Question id: 4133

Which of the following statements about aminoacyl-tRNA synthetases is false?

#XL - T Zoology

  1. Some of the enzymes have an editing/proofreading capability.

  2. The enzyme attaches an amino acid to the 3' end of a tRNA.

  3. The enzyme splits ATP to AMP + PPi.

  4. The enzyme will use any tRNA species, but is highly specific for a given amino acid.

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TLS Online TPP Program

#Question id: 7293

#XL - R Botany

In agamous mutant (flower within flower phenotype) which of the following statements is valid?
TLS Online TPP Program

#Question id: 5755

#XL - S Microbiology

A researcher studying bacterial toxin predicts that a lysine within the toxin is important for binding it’s target cell.  She used site-directed mutagenesis to change a codon for lysine (AAA) to one for asparagine (AAU).  However, the mutant toxin still binds to its target cell just as well as the wild-type toxin bound and appears to have no other changes. This type of mutation is probably
TLS Online TPP Program

#Question id: 27540

#XL - U Food Technology

Alpha linolenic acid is an example of
TLS Online TPP Program

#Question id: 9567

#XL - T Zoology

Which part of the electromagnetic spectrum is the photosynthetically active region?
TLS Online TPP Program

#Question id: 10136

#XL - R Botany

A protein complex contain a Rieske protein known as