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TLS Online TPP Program

#Question id: 349

Increased atmospheric CO2 concentrations might have what effect on seawater?

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

  1. Seawater will become more alkaline, and carbonate concentrations will decrease.

  2. There will be no change in the pH of seawater, because carbonate will turn to bicarbonate.

  3. Seawater will become more acidic, and carbonate concentrations will decrease.

  4. Seawater will become more acidic, and carbonate concentrations will increase.

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TLS Online TPP Program

#Question id: 565

#SCPH05 I Biotechnology

A transition-state analog:
TLS Online TPP Program

#Question id: 19221

#SCPH28 | Zoology

Which gene is added downstream from the left border to prevent unwanted vector DNA past the left border from being incorporated into transgenic plants.
TLS Online TPP Program

#Question id: 936

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

At neutral pH, the main ionic form of ammonia is ________.
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#Question id: 3267

#SCPH28 | Zoology

In a typical Mendelian population, individuals carrying gene ‘a’ in homozygous condition suffer from phenylketonurea. Those with A in homozygous condition are normal. Others, who are heterozygotic with Aa, are carriers. If the frequency of ‘a’ in a population is 0.20, what is the percentage of normal individual in the population?
TLS Online TPP Program

#Question id: 6946

#SCPH28 | Zoology

The adult body plan of the fly is based on reiterating structures called segments; segment precursors (parasegments) are first positioned at the cell-by-cell level by which group of genes?