TLS Online TPP Program

#Question id: 12077


 RU486 causes abortion if it is administered before or soon after implantation. What is the specific effect of RU486?

#Unit 7. System Physiology – Animal
  1. It binds to luteinizing hormone receptors, stimulating the secretion of progesterone from the corpus luteum
  2. It blocks progesterone receptors so that progesterone has no effect within the body
  3. It blocks the secretion of follicle-stimulating hormone by the pituitary
  4. It blocks the effects of oxytocin receptors in the uterine muscle
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TLS Online TPP Program

#Question id: 4020

#Unit 3. Fundamental Processes

You are studying the expression of the gene that appears to be under the control of three different transcription-control regions during mouse embryonic development. Which one of the following is the BEST method to use to determine when each of these regions are active in the developing mouse embryo?

TLS Online TPP Program

#Question id: 4021

#Unit 3. Fundamental Processes

Reporter genes employ fragments of DNA encoding proteins that when translated do not have any obvious effects in the cells and tissues. Which one of the following is NOT a reporter protein?

TLS Online TPP Program

#Question id: 4022

#Unit 3. Fundamental Processes

You are studying the effects of α-amanitin, a poisonous cyclic octapeptide, on eukaryotic cells and have noticed that following treatment, there is no miRNA transcription. Based on this evidence you conclude that α-amanitin must be inhibiting:

TLS Online TPP Program

#Question id: 4023

#Unit 3. Fundamental Processes

Which of the following is a fundamental difference between gene regulation in bacteria compared with eukaryotes?

TLS Online TPP Program

#Question id: 4024

#Unit 3. Fundamental Processes

All of the following statements about the essential carboxy terminal domain (CTD) of RNA polymerase are true except:

TLS Online TPP Program

#Question id: 4025

#Unit 3. Fundamental Processes

You have identified a transcription factor and hypothesize that it binds to the promoter region of a gene that encodes a protein that causes cells to stop dividing. In order to test the interaction between the transcription factor and the DNA you will need to do a specific assay. Which one of the following would you use to test your hypothesis?