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TLS Online TPP Program

#Question id: 4952

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it?

#Unit 11. Evolution and Behavior

  1. How can amino acids, simple sugars, and nucleotides be synthesized abiotically?

  2. How can RNA molecules catalyze reactions?

  3. How did RNA sequences come to carry the code for amino acid sequences?

  4. How could polymers involving lipids and/or proteins form membranes in aqueous environments?

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TLS Online TPP Program

#Question id: 19217

#Unit 12. Applied Biology

The T-DNA is transferred as which type of molecule from the Ti plasmid, enters the plant cell.
TLS Online TPP Program

#Question id: 26552

#Unit 3. Fundamental Processes

If RNA have non-stop mutation then it sis degraded by
TLS Online TPP Program

#Question id: 12582

#Unit 10. Ecological Principles

Which of  the  following  describes carbon dioxide,  methane, and  water  vapor re-reflecting infrared radiation back toward Earth?
TLS Online TPP Program

#Question id: 28313

#Unit 5. Developmental Biology

During acrosome-reacted sperm pathway sperm that have undergone the acrosome reaction bind directly to which of the glycoprotein?
TLS Online TPP Program

#Question id: 1324

#Unit 4. Cell Communication and Cell Signaling

What are the two major proteins that comprise tight junctions?