
Fig. 4. Pairing abnormalities in surface-spread spermatocytes from Rb/+ mice. (A) A
nucleus showing the pairing abnormalities (arrowheads) in an Rb/+ spermatocyte
stained with antserum against the synaptonemal complex protein SYCP3 (red).
(B) A protrusion in the pairing regions (arrowhead). Scale bars: 10 µm in
A; 1 µm in B.