TLS Online TPP Program

#Question id: 15616


The diagram below shows the F factor and a portion of the E. coli chromosome that has three different insertion sequences (IS) of the same type as is carried on F.
                     
Describe the three different Hfrs (Hfr #1, Hfr #2 and Hfr #3) that can be formed by recombination between the IS on F and each of the IS sequences on the chromosome. Some including the positions of each of the markers (A, B, C, and D) and state which of these markers would be transferred early?

#SCPH06 I Botany
  1. Hfr #1: A transferred early

    Hfr #2: C (and then D) transferred early

    Hfr #3: C (then B then A) transferred early

  2. Hfr #1: A transferred early

    Hfr #2: D transferred early

    Hfr #3: B transferred early

  3. Hfr #1: B transferred early

    Hfr #2: C transferred early

    Hfr #3: B (and then A) transferred early

  4. Hfr #1: A transferred early
    Hfr #2: D (and then C) transferred early
    Hfr #3: B ( and then A) transferred early

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TLS Online TPP Program

#Question id: 9271

#SCPH05 I Biotechnology

Chlorophylls a and b are abundant in green plants, and c and d are found in some protists and cyanobacteria. A number of different types of bacteriochlorophyll have been found; which type of chlorophyll is the most widely distributed, shows the distribution of pigments in different types of photosynthetic organisms;

TLS Online TPP Program

#Question id: 9271

#SCPH06 I Botany

Chlorophylls a and b are abundant in green plants, and c and d are found in some protists and cyanobacteria. A number of different types of bacteriochlorophyll have been found; which type of chlorophyll is the most widely distributed, shows the distribution of pigments in different types of photosynthetic organisms;

TLS Online TPP Program

#Question id: 9272

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

The quantum yield of photosynthesis falls off drastically for far-red light of wavelengths greater than 680 nm, indicating that far-red light alone is inefficient in driving
photosynthesis, this effect is called

TLS Online TPP Program

#Question id: 9272

#SCPH05 I Biotechnology

The quantum yield of photosynthesis falls off drastically for far-red light of wavelengths greater than 680 nm, indicating that far-red light alone is inefficient in driving
photosynthesis, this effect is called

TLS Online TPP Program

#Question id: 9272

#SCPH06 I Botany

The quantum yield of photosynthesis falls off drastically for far-red light of wavelengths greater than 680 nm, indicating that far-red light alone is inefficient in driving
photosynthesis, this effect is called

TLS Online TPP Program

#Question id: 9273

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

In the higher excited state, chlorophyll is extremely unstable; it rapidly gives up some of its energy to the surroundings as heat, and enters the lowest excited state, the excited chlorophyll has four alternative pathways for disposing of its available energy: fluorescence, Heat loss, energy transfer, photochemistry; all process takes place in which wavelength,