TLS Online TPP Program

#Question id: 4649


Which statement best describes the evolution of pesticide resistance in a population of insects?

#Unit 11. Evolution and Behavior
  1. Individual members of the population slowly adapt to the presence of the chemical by striving to meet the new challenge.

  2. All insects exposed to the insecticide begin to use a formerly silent gene to make a new enzyme that breaks down the insecticide molecules.

  3. Insects observe the behavior of other insects that survive pesticide application, and adjust their own behaviors to copy those of the survivors.

  4. Offspring of insects that are genetically resistant to the pesticide become more abundant as the susceptible insects die off.

More Questions
TLS Online TPP Program

#Question id: 3833

#Unit 3. Fundamental Processes

Regarding DNA replication, which, if any, of the following statements is incorrect?

TLS Online TPP Program

#Question id: 3834

#Unit 3. Fundamental Processes

In his transformation experiments, what phenomenon did Griffith observe?

TLS Online TPP Program

#Question id: 3835

#Unit 3. Fundamental Processes

State whether the following statements is true/false regarding DNA replication.

1. A short primer is added to the DNA polymerase reaction mix for Sanger DNA sequencing that has a 5สน free hydroxyl to which new nucleotides can be added.

2. In a sequencing gel, all fragment in one of the four lanes terminates in the same type of nucleotide base.

3. Eukaryotic cells contain at least five DNA polymerases all of which are responsible for nuclear DNA replication.

4. Since the rate of form movement in eukaryotes is much slower than that of bacteria, chromosomes require more than an hour to replicate.

5. Although histones and DNA are made in the same parts of the eukaryotic cell, the packaging of them in the nucleosome slows down replication so that it is slower than that of prokaryotes.

TLS Online TPP Program

#Question id: 3836

#Unit 3. Fundamental Processes

Which of the following statements accurately describes the differences between DNA replication in prokaryotes and DNA replication in eukaryotes?

TLS Online TPP Program

#Question id: 3837

#Unit 3. Fundamental Processes

How does the enzyme telomerase meet the challenge of replicating the ends of linear chromosomes?

TLS Online TPP Program

#Question id: 3838

#Unit 3. Fundamental Processes

Which of the following statements correctly describes the difference between the leading and the lagging strands of DNA during DNA replication?