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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 - T Zoology

  1. They had the same proportion of L and D isomers as Earth does today.

  2. The proportion of the amino acids was similar to those produced in the Miller-Urey experiment.

  3. There were fewer kinds of amino acids on the chondrites than are found in living organisms today.

  4. They were delivered in the form of polypeptides.

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TLS Online TPP Program

#Question id: 5566

#XL - T Zoology

In some rare salamander species, all individuals are females. Reproduction relies on those females having access to sperm from males of another species. However, the resulting embryos receive no genetic contribution from the males. Why do you think sperm are necessary for reproduction?
TLS Online TPP Program

#Question id: 5750

#XL - R Botany

 type of microorganism that can exist on minimal medium
TLS Online TPP Program

#Question id: 763

#XL - Q Biochemistry

Which of the following could be an effect of miRNA regulation?
TLS Online TPP Program

#Question id: 13031

#XL - S Microbiology

Use of alkaline solution in southern blotting helps in :
TLS Online TPP Program

#Question id: 20241

#XL - P Chemistry

The correct order of dipole moment is