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?

#XL - S Microbiology

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: 1600

#XL - S Microbiology

What is the name of MHC in humans?

TLS Online TPP Program

#Question id: 2685

#XL - T Zoology

There are about 3 billion chemical base pairs in human DNA. Approximately what percent of these base pairs actually code for genes?

TLS Online TPP Program

#Question id: 2083

#XL - S Microbiology

Sphingolipids are considered amphipathic glycolipids if:

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#Question id: 818

#XL - Q Biochemistry

Which one of the following weak interactions have central features of protein structures, but makes only minor contributions to protein stability?

TLS Online TPP Program

#Question id: 1115

#XL - Q Biochemistry

Which of the following is true during a typical cAMP-mediated signal transduction event?