TLS Online TPP Program

#Question id: 671


Which was a major scientific accomplishment by Linus Pauling?

#SCPH06 I Botany
  1. Determined the α-helix structure in keratin.

  2. Discovered β-strands and described their assembly into sheets.

  3. Determined the three-dimensional structure of hemoglobin and myoglobin.

  4. Determined the structure of penicillin.

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#Question id: 52

#I Life Science/ Life Sciences Group – I-V

Choose the incorrect option regarding Isomerism.

TLS Online TPP Program

#Question id: 52

#SCPH05 I Biotechnology

Choose the incorrect option regarding Isomerism.

TLS Online TPP Program

#Question id: 52

#SCPH28 | Zoology

Choose the incorrect option regarding Isomerism.

TLS Online TPP Program

#Question id: 53

#SCPH01 Biochemistry

Calculate the number of times the DNA of a modern E. coli cell has been copied accurately since its earliest bacterial precursor cell arose about 3.5 billion years ago. Assume for simplicity that over this time period, E. coli has undergone, on average, one cell division every 12 hours (this is an overestimate for modern bacteria, but probably an underestimate for ancient bacteria).

TLS Online TPP Program

#Question id: 53

#I Life Science/ Life Sciences Group – I-V

Calculate the number of times the DNA of a modern E. coli cell has been copied accurately since its earliest bacterial precursor cell arose about 3.5 billion years ago. Assume for simplicity that over this time period, E. coli has undergone, on average, one cell division every 12 hours (this is an overestimate for modern bacteria, but probably an underestimate for ancient bacteria).

TLS Online TPP Program

#Question id: 53

#SCPH05 I Biotechnology

Calculate the number of times the DNA of a modern E. coli cell has been copied accurately since its earliest bacterial precursor cell arose about 3.5 billion years ago. Assume for simplicity that over this time period, E. coli has undergone, on average, one cell division every 12 hours (this is an overestimate for modern bacteria, but probably an underestimate for ancient bacteria).