TLS Online TPP Program

#Question id: 7303


The ‘quartet model’ explains how the protein products of the ABCE-function genes might interact to control floral organ identity. Following statements are based on this model. Which one of them is incorrect?

#Unit 5. Developmental Biology
  1. There are four combinations of floral MADS-box proteins. SEP proteins may form heterodimers with A (AP1) and B (AP3/ PI) proteins (for petals), B (AP3/PI) and C(AG) proteins (for stamens), and C (AG) protein (for carpels).
  2. All these genes, with the exception of AP2 (and its homologues), are MADS-box genes, a broad family of eukaryotic genes that encode transcription factors containing a highly conserved DNA-binding domain (MADS domain).
  3. The protein quartets are transcription factors and may function by binding to the promoter regions of target genes.
  4. According to the model, one dimer of each tetramer recognize two different sites on the same DNA strand, thus bringing these areas into proximity via DNA-bending.

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TLS Online TPP Program

#Question id: 10963

#Unit 7. System Physiology – Animal

During an inflammatory response, which is the correct order for cellular events?

TLS Online TPP Program

#Question id: 10964

#Unit 7. System Physiology – Animal

A patient visits his dentist, who notices a sore on the patient’s lip. The sore was unusual in that there was no pain or drainage from the sore. The patient was subsequently admitted to the hospital with a violent shaking chill. His lab values were Hct 30%, platelets 400,000/μl, WBC 4200/μl, 68% lymphocytes, and 20% neutrophils. What is the diagnosis of this patient?

TLS Online TPP Program

#Question id: 10965

#Unit 7. System Physiology – Animal

Which of the following is a TRUE statement?

TLS Online TPP Program

#Question id: 10966

#Unit 7. System Physiology – Animal

A couple requests blood typing of their 2-year-old child (father AB, Rh-negative; mother B, Rhnegative). Results of hemagglutination assays of the child’s blood are shown in the next figure. Which of the following conclusions concerning the child’s parentage is valid?


TLS Online TPP Program

#Question id: 10967

#Unit 7. System Physiology – Animal

A 21-year-old female, blood type B, is undergoing surgery. Her platelet count is 75,000/μl. She will need platelet infusions before and during surgery. Which of the following blood types would be used to collect platelets that are compatible with the patient?

TLS Online TPP Program

#Question id: 10968

#Unit 7. System Physiology – Animal

Which of the following is TRUE concerning erythroblastosis fetalis (hemolytic disease of the newborn, HDN)?