TLS Online TPP Program

#Question id: 6958


Vg-1 and wnt are used in both frogs and chicks to establish a body axis, although in chicks this is the antero-posterior axis instead of the dorso-ventral axis. What is the region of the chick embryo that is thus analogous to the Nieuwkoop center?

#I Life Science/ Life Sciences Group – I-V
  1. area pellucida
  2. primitive streak
  3. posterior marginal zone
  4. Koller's sickle
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TLS Online TPP Program

#Question id: 10943

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

An 8-year-old male is frequently coming to the clinic for persistent skin infections that do not heal within a normal time frame. He had a normal recovery from the measles. Checking his antibodies following immunizations yielded normal antibody responses. A defect in which of the following cells would most like be the cause of the continual infections?

TLS Online TPP Program

#Question id: 10943

#SCPH28 | Zoology

An 8-year-old male is frequently coming to the clinic for persistent skin infections that do not heal within a normal time frame. He had a normal recovery from the measles. Checking his antibodies following immunizations yielded normal antibody responses. A defect in which of the following cells would most like be the cause of the continual infections?

TLS Online TPP Program

#Question id: 10944

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

Where does the transmigration of WBCs occur in response to infectious agents?

TLS Online TPP Program

#Question id: 10944

#SCPH28 | Zoology

Where does the transmigration of WBCs occur in response to infectious agents?

TLS Online TPP Program

#Question id: 10945

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

A 65-year-old alcoholic developed chest pain and cough with an expectoration of sputum. A blood sample revealed that his white blood cell count was 42,000/μl. What is the origin of these WBCs?

TLS Online TPP Program

#Question id: 10945

#SCPH28 | Zoology

A 65-year-old alcoholic developed chest pain and cough with an expectoration of sputum. A blood sample revealed that his white blood cell count was 42,000/μl. What is the origin of these WBCs?