Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 44571
TLS Online TPP Program

#Question id: 4135

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

#SCPH06 I Botany

  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.

More Questions
TLS Online TPP Program

#Question id: 14676

#SCPH05 I Biotechnology

An industrial-strength drain cleaner contains 5.00 kg of water and 5.00 kg of NaOH. What are the mass (weight) fraction and mole fraction of each component in the drain cleaner?
TLS Online TPP Program

#Question id: 13097

#SCPH01 Biochemistry

You are a scientist who is using genomics to currently study a new bacterial species that no one has ever studied before. The following sequence is a piece of DNA within the coding region of a gene that you have recently sequenced.
 
If you take any bacterial gene sequence, before you begin doing any sequence analysis on it, there are six potential open reading frames. Why are there six?
TLS Online TPP Program

#Question id: 4971

#SCPH06 I Botany

On the basis of their morphologies, how might Linnaeus have classified the Hawaiian silverswords?
TLS Online TPP Program

#Question id: 22948

#SCPH01 Biochemistry

In the floral meristem, the FT-FD complex → SOC1 and AP1 → ____?___ gene expression
TLS Online TPP Program

#Question id: 6983

#SCPH06 I Botany

In vertebrates, the heart forms from: