Which of the following is a FALSE statement about adenylylation of Glutamine syn

Question

Which of the following is a FALSE statement about adenylylation of Glutamine synthetase? At high ammonia, a small amount of ATP is used to deactivate the enzyme, thus saving a large amount of ATP that would otherwise be required to data catalyze the synthesis of many molecules of glutamine. The process allows available ammonia/ammonium-ion to be used in place of a glutamine in biosynthetic reactions that otherwise require glutamine The extent of PII uridylylation controls the extent of glutamine synthetase adenylylation. High glutamine favors deadenylylation of GS-AMP, the active form of this bacterial enzyme. In GS-AMP, the covalently bound AMP blocks substrate access to the active site of glutamine synthetase. Which of the following statements is TRUE? In eukaryotes, translation of an RNA can be initiated before its transcription is complete. Reverse transcriptase catalyzes addition of nucleotides to the 5' end of a polynucleotide chain. Semiconservative replication refers to synthesis of DNA only along the leading strand. During S-phase of a eukaryotic cell, DNA synthesis is initiated several times at each origin of replication. A gene for a protein includes the DNA encoding the protein and the regulatory elements controlling its expression.

Explanation / Answer

Question 39:Correct answer is :The process allows available ammonia/ammonium ion to be used in place of a glutamine in biosynthetic reactions that otherwise require glutamine.

ReasonAbove statement is not a part of the process adenylation of glutamine synthetase.

Question 40:Correct answer is :A gene for a protein includes the DNA encoding the protein and the regulatory elements controlling its expression.

Reason:DNA encodes for a protein and posseses regulatory elements that control the expression.

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