The order of the biosynthetic pathway from start to finish is: a) ABCD b) DBAC c

Question

The order of the biosynthetic pathway from start to finish is: a) ABCD b) DBAC c) CBAD d) BDCA Mutant #1 inactivates the enzyme that catalyzes the enzymatic reaction a) last b) third c) second d) first Increased frequency of Down syndrome is associated with: a) Inheritance of one mutant gene. b) older maternal age. c) Younger paternal age. d) Increasing paternal age. Mass spectroscopy and 2-D gel electrophoresis are used to analyze a) proteins b) mRNA's c) DNA. Which of the following is true about RNA gene silencing? a) It may decrease translation. b) It may result in degradation of mRNA. c) A double-stranded RNA may form. d) All the above are true. Transcriptomes, that is, all he transcripts in a cell, are analyzed using: a) recently labeled nucleotides b) microarrays c) PCR. d) all the above

Explanation / Answer

69) the answer is option (a) proteins. It is used for analysis of the protein where 2-D-gel electrophoresis seperate protein on the basis of pH and mass spectroscopy determine its shape..

70) the answer is option (d) all of the above are true. Gene silencing is a condition where the action and expression of the RNA are decreased which results in the following conditions..

71) the answer is option (b) micro array which is based on the principles of RNA sequencing...!!

66) the answer is option (b) DBAC is the correct order of the biosynthesis pathway.. As, everyone can grow in the medium containing C, then A, then B and then D.

67) the answer is option (a) last.. It is because when all other substrate are given It cannot grow. It can only grow when the last substrate is given hence the last and final reaction step in inhibited..

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