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TLS Online TPP Program

#Question id: 4943

In what way were conditions on the early Earth of more than 3 billion years ago different from those on todayʹs Earth?

#SCPH28 | Zoology

  1. only early Earth had water vapor in its atmosphere.

  2. Only early Earth was intensely bombarded by large space debris.

  3. Only early Earth had an oxidizing atmosphere.

  4. Less ultraviolet radiation penetrated Earthʹs early atmosphere.

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TLS Online TPP Program

#Question id: 369

#SCPH05 I Biotechnology

Calculate the pH of a 2.0 L solution containing 10 mL of 5 M acetic acid and 10 mL of 1 M sodium acetate. (pKa = 4.76)
TLS Online TPP Program

#Question id: 2266

#SCPH01 Biochemistry

In bacteria, some of the functions of eukaryotic cells are performed
TLS Online TPP Program

#Question id: 14343

#SCPH05 I Biotechnology

Combustion reaction is as followed
Assuming a heat of combustion of 104 kcal per mole O2, the heat released by combustion of bacteria is ____
TLS Online TPP Program

#Question id: 4746

#SCPH28 | Zoology

Two independent pure line varieties having deep red and brown phenotype in their seed coat were cross, the all f1 progeny is deep red. The F2 progeny obtain from selfing show deep red and brown in ratio of 15:1. Which of the following observation is correct?
TLS Online TPP Program

#Question id: 19204

#SCPH01 Biochemistry

Example of acoustic wave biosensor could be