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TLS Online TPP Program

#Question id: 4135

In the “activation” of an amino acid for protein synthesis:

#Unit 3. Fundamental Processes

  1. leucine can be attached to tRNAPhe, by the aminoacyl-tRNA synthetase specific for leucine.

  2. methionine is first formylated, then attached to a specific tRNA.

  3. the amino acid is attached to the 5' end of the tRNA through a phosphodiester bond.

  4. there is at least one specific activating enzyme and one specific tRNA for each amino acid.

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TLS Online TPP Program

#Question id: 23191

#Unit 13. Methods in Biology

In stimulated emission depletion (STED) microscopy the focused excitation laser point is surrounded by a 
TLS Online TPP Program

#Question id: 19879

#Unit 13. Methods in Biology

Which of the following enzyme is used to cut DNA molecules in rDNA technology
TLS Online TPP Program

#Question id: 23166

#Unit 13. Methods in Biology

To visualize two proteins in fixed Hela cells using an epifluorescence microscope. Below is a list of various fluorophores (dyes) available to see those proteins.
1. FITC
2. GFP
3. Fluorescein
4. Alexa 568
Select the correct combinations of the appropriate dyes that would typically be utilized to observe co-localization in an epifluorescence microscope?
TLS Online TPP Program

#Question id: 4726

#Unit 8. Inheritance Biology

Which of the following is incorrect regards genomic imprinting?
TLS Online TPP Program

#Question id: 5456

#Unit 8. Inheritance Biology

Traits which exhibit continuous phenotypic variation are typically determined by this inheritance form _______.