Practice Questions

TLS Online TPP Program

#Question id: 4133

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

#Unit 3. Fundamental Processes

Some of the enzymes have an editing/proofreading capability.
The enzyme attaches an amino acid to the 3' end of a tRNA.
The enzyme splits ATP to AMP + PPi.
The enzyme will use any tRNA species, but is highly specific for a given amino acid.

More Questions

#Question id: 2626

#Unit 2. Cellular Organization

lac operator is made up of

#Question id: 2627

#Unit 2. Cellular Organization

Binding of repressor on to the operator sequences, RNA polymerase binding is analyzed by;

#Question id: 2628

#Unit 2. Cellular Organization

Choose true statement about lac repressor;

#Question id: 2629

#Unit 2. Cellular Organization

Case of constitutive mutants,

#Question id: 2631

#Unit 2. Cellular Organization

True statements about genes of galactose metabolism in Yeast;

#Question id: 2634

#Unit 2. Cellular Organization

Tryptophan, the end-product of the enzymes encoded by the trp operon, therefore acts as a co-repressor and inhibits its own synthesis through: