I think the answer is d ... hope this helps
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Below are the choices:
<span>A) lysosomes
B) free cytoplasmic ribosomes
C) roughER
D) plasmodesmata
E) Golgi vesicles
</span>
The structure is the site of the synthesis of proteins that may be exported from the cell is roughER
I think a relative frequency of alleles or genetic variation will remain unchanged for generations. For example if there is a 1 percent genetic variability in an organism of first generation, then the genetic variability in an organism of second generation will also be approximately 1 percent. There will not be a rapid increase in genetic variations. Mutation will not occur or if occur then it will be at the rate of equilibrium.