Which gene is added downstream from the left border to prevent unwanted vector DNA past the left border from being incorporated into transgenic plants.

#Question id: 31111

#Unit 2. Cellular Organization

#Question id: 11563

#Unit 7. System Physiology – Animal

Hormones secreted by the posterior pituitary gland are made in the ________.

#Question id: 12010

#Unit 10. Ecological Principles

#Question id: 33703

#Unit 2. Cellular Organization

#Question id: 1515

#Unit 4. Cell Communication and Cell Signaling

Following statements are regarding to metastasis (using breast carcinoma cells as an example).

A. Cancer cells leave the main tumor and attack the basement membrane, using extracellular matrix (ECM) fibers to reach the blood vessels.

B. The cancer cells can be attracted by signals such as epidermal growth factor (EGF), which can be secreted by macrophages.

C. At the blood vessels they penetrate the layer of endothelial cells that forms the vessel walls and enter the bloodstream.

D. Carcinoma cells penetrate the extracellular matrix and blood vessel wall by extending “invadopodia,” which produce matrix metalloproteases and other proteases to open up a path.

Which of the following statement shows process of angiogenesis?