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TLS Online TPP Program

#Question id: 343

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?

#SCPH06 I Botany

  1. 1 × 10^-9 mol of hydroxide ions per liter of lake water

  2. 1 × 10^-5 mol of hydroxide ions per liter of lake water

  3. 5.0 M hydroxide ion

  4. 5.0 × 10^-5 mol of hydroxide ions per liter of lake water

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TLS Online TPP Program

#Question id: 11074

#SCPH28 | Zoology

A 30-year-old woman performs a valsalva maneuver about 30 min after eating lunch. Which of the following best describes the changes in pulmonary and systemic blood volumes that occur in this woman?
TLS Online TPP Program

#Question id: 1756

#SCPH01 Biochemistry

Which of the following is the cytokine that is most involved in the class switch to IgE production?
TLS Online TPP Program

#Question id: 13104

#SCPH06 I Botany

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction and load each one into a separate well of an agarose gel, and then run the gel.
 

 
Why is it that some people show two bands?
TLS Online TPP Program

#Question id: 16073

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

The initiation of FASTA format has ___ symbol.
TLS Online TPP Program

#Question id: 18376

#SCPH06 I Botany

Increase in iron content of the plants treated with B. subtilis volatiles is correlated with