Aptamers are

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#Question id: 10763

#SCPH05 I Biotechnology

In mevalonic acid pathway, three molecules of acetyl-CoA are joined together stepwise to form mevalonic acid, which intermediate steps it will perform to yield isopentenyl diphosphate (IPP2)?

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#Question id: 15658

#SCPH06 I Botany

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium.

Next, you isolate a third mutant, MelC–, which gives constitutive melibiase expression. The MelC– mutation is closely linked to Mel1 and MelB–. Genetic tests of the MelC– mutation yield the following:

 

As above, classify the MelC– mutation in terms of its basic genetic properties and explain how you arrived at your conclusions.

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#Question id: 2300

#SCPH01 Biochemistry

Which of the following is not found in cell sap?

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#Question id: 5080

#SCPH28 | Zoology

As cleavage continues during frog development, the size of the blastomeres:

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#Question id: 14852

#SCPH06 I Botany

In three throws of two dice, the probability of throwing doublets not more than two times is