Dr. Paul B. Weisz, a 28-year-old refuges from Austria now serving as assistant professor of biology at Brown University, Providence, R.I., has discovered what may roughly he termed a third ...
Pentaploid Rosa canina’s flower reveals its unique sexual reproduction: asymmetric meiosis creates haploid pollen (anthers) transmitting only bivalent-forming chromosomes, while ovaries inherit both ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results