Mature B cells produce immunoglobulins
The thymus gland is the site where T-cells mature.
No. Mature red blood cells have neither a nucleus nor chromosomes.
Stem cells in a fetus mature in the yellow bone marrow.
Almost every cell (living or dead) contains DNA. There are a few very rare exceptions, including mature mammalian red blood cells (erythrocytes), which lose their contents to maximise oxygen carrying capacity. Young erythrocyte precursor cells, that will later become mature red blood cells, will contain DNA, as do red blood cells of other organisms (other than mammals).
Water-conducting cells
No, they are usually living. It is the xylem tissue that is made mostly of dead cells.
Mature B cells produce immunoglobulins
Cork is the outer protective tissue of older stems and roots. The mature cork cells become dead and filled with tannis, resins and air.
They are made in the bone marrow, but B cells mature in the spleen and T cells mature in the thymus.
I'll Mature When I'm Dead was created in 2010.
The thymus gland is the site where T-cells mature.
No. Mature red blood cells have neither a nucleus nor chromosomes.
Stem cells in a fetus mature in the yellow bone marrow.
Undifferentiated means lacking structures typical in mature cells.
I believe it's immature bone because it has the mesenchyme cells, osteoprogenitor cells and osteoblasts. While mature bone has the osteocytes.
Almost every cell (living or dead) contains DNA. There are a few very rare exceptions, including mature mammalian red blood cells (erythrocytes), which lose their contents to maximise oxygen carrying capacity. Young erythrocyte precursor cells, that will later become mature red blood cells, will contain DNA, as do red blood cells of other organisms (other than mammals).