TLS Online TPP Program

#Question id: 11103


A key mechanism of gas transport through the tracheal system is

#Unit 7. System Physiology – Animal
  1. muscular contraction.
  2. the scaphognathite.
  3. diffusion.
  4. spiracle size.
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TLS Online TPP Program

#Question id: 7177

#Unit 5. Developmental Biology

Following statements are regarding to the early development in nematodes. Which of the following is incorrect?

TLS Online TPP Program

#Question id: 7178

#Unit 5. Developmental Biology

In sea urchin, the large micromeres are autonomously specified. They inherit maternal determinants that were deposited at the vegetal hemisphere of the egg; these become incorporated into the large micromeres at fourth cleavage. When an isolated animal hemisphere is combined with isolated micromeres, then what will be the result?

TLS Online TPP Program

#Question id: 7179

#Unit 5. Developmental Biology

Blocking BMP(BMP2, BMP4, BMP7) signaling by infecting progress zone cells with retroviruses carrying dominant negative BMP receptors. Which of the following results are found?

TLS Online TPP Program

#Question id: 7180

#Unit 5. Developmental Biology

Development of tetrapod limb has to function in a three dimensional coordinated system:

Proximal-distal axis by ____a_____

Anterior-posterior axis by ___b_____

Dorsal-ventral axis by ______c____

Which of the following combinations are correct?

TLS Online TPP Program

#Question id: 7181

#Unit 5. Developmental Biology

Following graph represents Inhibition of L1-mediated cell adhesion by alcohol.

If L1 is mutate, which of the following graph is correct?

TLS Online TPP Program

#Question id: 7182

#Unit 5. Developmental Biology

Suppose a flower had normal expression of genes A and C and expression of gene B in all four whorls. Based on the ABC hypothesis, what would be the structure of that flower, starting at the outermost whorl?