Recessive and dominant traits have nothing whatsoever to do with either fitness or frequency. Recessive traits can be more common either non-randomly through natural selection or randomly through genetic drift
In many cells, the structure that controls the cell's activities is the nucleus.
I like, your question... there might be I looked, for some and found these listings:
Polar Bears International (PBI)
Most cases would include cystic fibrosis<span>, </span>sickle cell anemia,Tay-Sachs<span> disease, </span>phenylketonuria<span> and color-</span>blindness<span>, among many others.</span>
Answer:
I believe it is called the gametangium, hope it helps :)