Which defenses require specific detection systems and signal transduction pathways that can sense the presence of an herbivore or pathogen and alter gene expression and metabolism accordingly

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#Question id: 9219

#SCPH06 I Botany

If the sex ratio in a population is significantly different from 50:50, then which of the following statements will always be accurate?

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#Question id: 3676

#SCPH01 Biochemistry

Which function can be carried out by DNA replication proteins?

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#Question id: 13053

#SCPH06 I Botany

What would the generally expected effect on the PCR reaction be of adjustments that increase the temperature of the annealing phase and the length of the elongation phase?

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#Question id: 5250

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

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 generatesnappropriate donor and recipient strains. He is disappointed when cotransduction is not seen in his experiement. What is the most reasonable explanation for this situation?

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#Question id: 6964

#SCPH06 I Botany

If embryos are disaggregated with chemicals or proteases, and the individual cells are mixed together in culture, what will happen?