Where does meiosis occur in male and female?

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?

Why has two different alleles for the same trait?