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TLS Online TPP Program

#Question id: 2105

An investigator wants to use FRAP to quantify the lateral movement of a specific plasma membrane protein, but to do so this investigator must first:

#Section 2: General Biology

  1. focus a laser on one region of the cell surface.

  2. measures the intensity of the fluorescence of the cell surface.

  3. label the cell with a fluorescent reagent that binds specifically to the cell surface.

  4. add detergents to make the cell surface more fluid.

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TLS Online TPP Program

#Question id: 9275

#Section 2: General Biology

The colour of carrots, is due to;
TLS Online TPP Program

#Question id: 3681

#Section 3: Genetics, Cellular and Molecular Biology

 A mutated E. coli cell carries out and completes DNA replication, but the lagging strands are found to contain more errors than normal. These errors are not found evenly distributed throughout the lagging strands, but are found in clusters. Which enzymatic activity is missing from this cell?
TLS Online TPP Program

#Question id: 14897

#Section 5: Bioprocess Engineering and Process Biotechnology

Henry's law relates 
TLS Online TPP Program

#Question id: 10772

#Section 3: Genetics, Cellular and Molecular Biology

In an experiment plant RR round genotype have 100 seeds. In F1 generation 70 seeds are round and 30 seeds are wrinkled. So what will be
the penetrance value for round seeds?
TLS Online TPP Program

#Question id: 184

#Section 2: General Biology

What is the approximate charge difference between glutamic acid and alpha-ketoglutarate at pH 9.5?