The figure above represents a late zebrafish gastrula. The following concepts may be proposed during further development of the embryo.

A. The concentration of FGF decreases from the yolk towards the epidermis, along with the increase of BMP activity from the dorsal to the ventral axis.

B. Increase in FGF activity in the epidermis with concomitant decrease in BMP activity towards the ventral axis.

C. Neural induction in zebrafish is independent of the organizer and depends on activation of BMP signalling.

D. In comparison, both Xenopus and chick embryos require activation of FGF for neural induction to occur in addition to BMP inhibition.

Which of the above statements are incorrect?

TLS Online TPP Program

#Question id: 11069

#Unit 7. System Physiology – Animal

A 22-year-old woman inhales as much air as possible and exhales as much air as she can producing the spirogram shown in the figure. A residual volume of 1.0 L was determined using the helium dilution technique. What is her functional residual capacity (in liters)?

 

 

TLS Online TPP Program

#Question id: 592

#Unit 1. Molecules and their Interaction Relevant to Biology

The expression: Vmax = k2[E]total applies to

TLS Online TPP Program

#Question id: 32309

#Unit 2. Cellular Organization

Cancer cells that contain constitutively active Ras use enhanced -_______?______to obtain increased nutrients from the surrounding environment in order to support their rapid growth and division.

TLS Online TPP Program

#Question id: 10127

#Unit 6. System Physiology – Plant

In higher plants, the multi-subunit protein supercomplex has two complete reaction centers and some antenna complexes. The core of the reaction center consists of two membrane proteins known as D1 and D2, Which contained a multi-subunit protein supercomplexes;

TLS Online TPP Program

#Question id: 21243

#Unit 7. System Physiology – Animal

A 62-year-old Caucasian woman experienced a rapid onset of blurry vision along with loss of central vision. A comprehensive eye exam showed that she had wet age-related macular degeneration. The fovea of the eye