No, platelets are cell fragments. They do not have a nucleus.
NO, they do not contain DNA for one reason. Platelets aren´t able to produce cyclooxygenase.
Yes, they have a lobe-shaped nucleus
red blood cells that have not lost their nucleus.
Platelets are not cells, they are fragments of cells that were created when larger cells in the bone marrow broke apart. Platelets play an important role in blood clotting.
Platelets are not cells.They are cell fragments.They do not have Mitochondria.
Platelets get together and form a clot.
Platelets isn't it capillaries?
Platelets, A fragment of a cell, lacks a nucleus
No, platelets do not have a nucleus. They're known as anucleur cells.
Platelets
Platelets
They do not have a nucleus. RBC carry oxygen to body.
Neither has a nucleus.
red blood cells that have not lost their nucleus.
Frogs don't produce platelets, and the red blood cells have a nucleus.
Within humans, red blood cells and blood platelets do not have nuclei.
Basically, there's no use for nucleus in a platelet cell, and so there isn't one. Here's a more thorough explanation: Platelets are cells that don't go through mitosis as fully specialized cells, thus having a nucleus, with the genetic information for duplication, would be unnecessary, and in nature unnecessary things are often gotten rid of. Another reason is the fact that platelets don't synthesize proteins, they contain substances that participate in the clogging of blood, but they don't produce these substances. When more is needed, more platelets are produced in the bone-marrow.
Thrombocytes, or platelets, are the formed elements of the blood that aren't and never were true cells. They are cell fragments. The erythrocytes (red blood cells) are originally cells with a typical nucleus, but they lose the nucleus in the process of development.
No they are not true cellsThey are pieces of cells. They do not have a nucleus, etc. Platelets create scabs when you get a cut so that your blood doesn't keep pouring out.