Practice Questions

TLS Online TPP Program

#Question id: 4944

What is true of the amino acids that might have been delivered to Earth within carbonaceous chondrites?

#11. Evolution and Behavior

They had the same proportion of L and D isomers as Earth does today.
The proportion of the amino acids was similar to those produced in the Miller-Urey experiment.
There were fewer kinds of amino acids on the chondrites than are found in living organisms today.
They were delivered in the form of polypeptides.

More Questions

TLS Online TPP Program

#Question id: 11099

#7. System Physiology – Animal

In the mammalian alveoli, the partial pressure of O2 is _______ that of atmospheric air and the CO2 partial pressure is _______ that of atmospheric air

TLS Online TPP Program

#Question id: 10611

#10. Ecological Principles

If the net reproductive rate (R0) is equal to 0.5, what assumptions can we make about the population?

TLS Online TPP Program

#Question id: 5092

#5. Developmental Biology

The least amount of yolk would be found in the egg of a ________.

TLS Online TPP Program

#Question id: 10418

#6. System Physiology – Plant

What is the reason behind that the PAS-related domain (PRD) is only present in the Plant phytochrome, but absent in cyanobacterial Cph1 and Bacterial BphP?