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TLS Online TPP Program

#Question id: 15670

A researcher would like to map the location of galE and trpA genes in a new species of bacterium that appears to be closely related to E. coli. He decides to use cotransduction, and generates appropriate donor and recipient strains. He is disappointed when cotransduction is not seen in his experiement. What is the most reasonable explanation for this situation?

#SCPH12 I Genetics
  1. His new bacterial species does not have galE or trpA genes.
  2. His new bacterial species cannot survive galE or trpA mutation.
  3. These two genes are too far apart to be mapped by cotransduction
  4. These two genes are too close together to be mapped by cotransduction
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TLS Online TPP Program

#Question id: 14506

#SCPH01 Biochemistry

In a Binomial distribution, the mean and standard deviation are 12 and 2 respectively. The values of n and p are respectively.
TLS Online TPP Program

#Question id: 19374

#SCPH28 | Zoology

Transgene expression can be exploited in several different ways such as
1. Protein product itself may be an important biomolecule 
2. Protein itself may generate a valuable phenotype in the plan
3. Product may trigger a pathway endogenous to the plant
Which of the above statements are correct?
TLS Online TPP Program

#Question id: 7309

#SCPH01 Biochemistry

Following statements are regarding to the molecular basis of the coincidence model in Arabidopsis.

A. In Arabidopsis under short days, there is little overlap between CO mRNA expression and daylight.

B. CO protein does not accumulate to sufficient levels in the phloem to promote the expression of the transmissible floral stimulus and the plant remains vegetative.

C. Under long days, the peak of CO mRNA abundance (at hours 12 through 16) overlaps with daylight (sensed by phyA and cryptochrome [cry]), allowing CO protein to accumulate.

D. CO activates FLC mRNA expression in the phloem, which causes flowering when the FT protein is translocated to the apical meristem.

Which of the following is incorrect?
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#Question id: 592

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

The expression: Vmax = k2[E]total applies to
TLS Online TPP Program

#Question id: 11528

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

All three given naturally found auxin in the plants except