Which statement best summarizes the major distinction between horizontal gene transfer and vertical gene transfer?
A. Genes are more stable in recipient cells following horizontal transfer that in those following vertical transfer.
B. The recipient of genes in horizontal transfer is a mature cell, whereas the recipient of genes in vertical transfer is a progeny cell.
C. Horizontal transfer is observed in bacteria and archaea, whereas vertical transfer is observed in all cells.
D. Organisms that use horizontal transfer can only reproduce asexually, whereas organisms that use vertical transfer can reproduce sexually or asexually.
Answer: B
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