TLS Online TPP Program

#Question id: 2526


cell walls essential and are important features of plant cells that perform a number of essential functions. Which of the following is not the characteristics of cell wall?

#Unit 2. Cellular Organization
  1. Cells are glued together by their walls, preventing cell sliding, slippage, and motility

  2. The cell wall acts as a cellular “exoskeleton” that controls cell shape and allows high turgor pressures to develop

  3. cell wall acts as a diffusion barrier that exceeds the size and kinds of molecules that can reach the plasma membrane, both through sieving effects and through ionic and covalent interactions

  4. sensory proteins are partly anchored in the cell wall and form a bridge to the plasma membrane

More Questions
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?

TLS Online TPP Program

#Question id: 7183

#Unit 5. Developmental Biology

Following graphs (A and B) represents establishment of a maternal gradient in Hunchback protein.

                  

which of the following statements are correct according to graphs?