TLS Online TPP Program

#Question id: 250


 Much of the stability of the double-stranded DNA structure is the result of

#SCPH12 I Genetics
  1. hydrogen bonding between purines.

  2. the phosphodiester backbone.

  3. the angle of the planes of the bases with respect to the helix axis.

  4. the stacking interactions between base pair.

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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).

TLS Online TPP Program

#Question id: 53

#SCPH28 | Zoology

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).