What is the end result of crossing-over during the first stage of meiosis? the chromatids contain the maternal DNA only
the paternal DNA only is copied onto the chromatids
the chromatids become non-sister (non-identical) chromatids
the chromatids are identical to each other

When water freezes, it . contracts expands

Are the earth's ocean floor and continents the same age geologically? why or why not?

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis