The biological function of stem cells is to replenish existing stem cells and differentiate into specific cell types
Answer:
The correct answer is 'd' No, because Rhizbium radiobacter only infects wounded area of the plant and those regions are already dead.
Explanation:
Rhizobium is a genus of gram negative, soil bacteria that forms symbiotic relationship with certain plant, fixing nitrogen. However, soil borne plant pathogen, <em>Agrobacterium tumefaciens, </em>or rhizobium radiobacter, are tumor producing species that does not in anyway benefit the plant. The have a tendency to cause crown gall tumors by transfering T-DNA of its Ti plasmid intp a plant cell, where the T-DNA becomes integrated into the plant genome, Hence causing overproduction of plant growth hormones which ultimately results in tumor. A. tumefaciens does not elicit a typical Hypersensitivity response in a plant. As it enters only through wounds in the plant and these regions are already dead, hence no hypersensitivity response is produced by the plant.
Molluscs. hope this helps!
These
instructions that produces a specific protein is called the Gene. A gene is a region
of DNA that encrypts purpose. A chromosome comprises of a long strand of DNA that
involves many genes. A human chromosome can contain up to 500 million base pairs
of DNA that has thousands of <span>genes.</span>
Answer:
Pollen grains land on the stigma and move down the pollen tube into the ovary.
