Sucrose is replace by another sugar in tobacco callus medium without effecting callus growth. This sugar is an osmotic agent and is not taken into the plant cells or metabolized because of its molecular size.

#Question id: 1274

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following are included as functions of the extracellular matrix?

a. supporting differentiation               b. synthesis of procollagen

c. binding growth hormones               d. filtering

#Question id: 1275

#Section 3: Genetics, Cellular and Molecular Biology

The functions of the extracellular matrix include:

a. supporting differentiation.

b. inducing morphogenesis.

c. binding growth hormones.

d. repairing damaged tissue

which of the following combination is correct?

#Question id: 1276

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following does not belong to the major families of cell surface adhesion molecules?

#Question id: 1277

#Section 3: Genetics, Cellular and Molecular Biology

Cadherin cellular adhesion molecules promote:

#Question id: 1279

#Section 3: Genetics, Cellular and Molecular Biology

A tight junction is made up of which of the following proteins?

a. tricellulin                                                     b. occludin

c. claudin                                                         d. connexins

#Question id: 1280

#Section 3: Genetics, Cellular and Molecular Biology

Cellular responses to adhesion receptor signaling do not include: