During metaphase 1, the spindle fibers attach to the centromeres of each chromosome. Both kinetochores of each sister chromatid pair are turned toward the same pole. And 2 members of each chromosome pair (sister chromatids) are pulled into each new cell during anaphase 1.
I think the answer you want is they are called chromatids.
The answer u r looking for is- D* failure of the immune system to distinguish self from nonself. Hope I’ve helped ;)
They use there fins to propel themselves
hope this was useful to you
Answer:
-DNA is a permanent storage place for genetic information
-DNA controls the synthesis of RNA (ribonucleic acid).
-The sequence of nitrogenous bases in DNA determines the protein development in new cells.
hope this helped! :)
They are able to respond to the presence of invading organisms because they recognize the<u> antigen </u>on the surface of organisms. There are specific receptors on the surface of immune system cells.
