Sentences with phrase «celled organisms recognize»

Using CRISPR, single - celled organisms recognize a viral invader and activate proteins that shred its DNA into pieces.

Not exact matches

The human immune system is adept at recognizing antigens it has met before: Antibodies snap onto the projecting viral proteins and prevent the organism from infecting other cells.

Most biologists typically recognize three official branches of life: the eukaryotes, which are organisms whose cells have a nucleus; bacteria, the single - celled organisms that may or may not possess a nucleus; and archaea, an ancient line of microbes without nuclei that may make up as much as a third of all life on Earth (See «Will the Methane Bubble Burst?»

And, in the future, the potential to insert barcodes in genes and the development of in - line ID kits, that recognize specific strains of cell lines, could make it easier to verify new organisms and their protein products, and track products through supply chains.

They recognize and phagocytose foreign organisms, release antimicrobial peptides, secrete molecules that attract other immune cells to areas of infection, and present antigens to lymphocytes (64).

The trick with subtractive immunization is to first tolerize an organism - with a non-metastatic tumor cell, using an immune suppressant chemical like cyclophosphamide to kill off all the immune cells that recognize the immunodominant antigens.

These specialized cells in the immune system recognize organisms that invade the body and provide protection against disease.