TLS Online TPP Program

#Question id: 5639


In a comparison of plant and animal development, it is found that:

#Unit 5. Developmental Biology
  1. Animals evolved from plants, and animal developmental strategies are derived from those of plants

  2. Fully differentiated cells of plants are still totipotent, and will readily form a complete fertile plant whereas the differentiated state of animal cells is difficult to reverse

  3. Gene regulation evolved later than the split between plants and animals, and is executed differently in the two kingdoms

  4. Basic metabolic pathways and intracellular structures evolved separately in plants and animals and are fundamentally different

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TLS Online TPP Program

#Question id: 4362

#Unit 3. Fundamental Processes

How are bacteria able to change their patterns of protein synthesis so quickly in response to environmental changes?

TLS Online TPP Program

#Question id: 4363

#Unit 3. Fundamental Processes

researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. In one set of experiments, she succeeded in increasing acetylation of histone tails in the chromatin of the cells. Which of the following results would she most likely see in these cells?

TLS Online TPP Program

#Question id: 4364

#Unit 3. Fundamental Processes

A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. One of her colleagues suggested she try increased methylation of cytosine (C) nucleotides in the DNA of promoters of a mammalian system. Which of the following results would she most likely see?

TLS Online TPP Program

#Question id: 4365

#Unit 3. Fundamental Processes

Which of the following methods is utilized by eukaryotes to control their gene expression that is different from the type of control found in bacteria?

TLS Online TPP Program

#Question id: 4366

#Unit 3. Fundamental Processes

Which of the following is the correct order of addition of general transcription factors to the initiation complex?

TLS Online TPP Program

#Question id: 4367

#Unit 3. Fundamental Processes

Which of the following is considered a universal transcription factor?