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TLS Online TPP Program

#Question id: 9185

Plants are affected by an array of pathogens. Which of the following is a plant defense against disease?

#SCPH28 | Zoology
  1. cells near the point of infection destroying themselves to prevent the spread of the infection
  2. production of chemicals that kill pathogens
  3. acquiring gene-for-gene recognition that allows specific proteins to interact so that the plant can produce defenses against the pathogen
  4. All of the above are plant defenses against disease.
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TLS Online TPP Program

#Question id: 14347

#SCPH05 I Biotechnology

The K used in the equation for X10=2.303/K depends upon 
TLS Online TPP Program

#Question id: 4154

#SCPH06 I Botany

How many possible codons (of normal size) are possible using the bases found in DNA?
TLS Online TPP Program

#Question id: 10583

#SCPH06 I Botany

Suppose you discovered a new species about which youknow only two facts: it is small sized (<10 cm) and short lived (<20 days). Which of the following strategies is most likely to be true for this species?
TLS Online TPP Program

#Question id: 548

#SCPH28 | Zoology

Which one of the following statements is true of enzyme catalysts?
TLS Online TPP Program

#Question id: 4901

#SCPH28 | Zoology

Assume that the alleles A (dominant) and a (recessive) show a maternal effect mode of inheritance. In a cross between an Aa female and an aa male, what would be the phenotypes of the progeny?