The reason that paralogous genes can diverge from each other within the same gene pool, whereas orthologous genes diverge only after gene pools are isolated from each other, is that
A) having multiple copies of genes is essential for the occurrence of sympatric speciation in the wild.
B) paralogous genes can occur only in diploid species; thus, they are absent from most prokaryotes.
C) polyploidy is a necessary precondition for the occurrence of sympatric speciation in the wild.
D) having an extra copy of a gene permits modifications to the copy without loss of the original gene product.
The evolution of orthologs: homologous genes from different species.
Many human diseases are caused by mutations in single genes
Crying Frequency in the Early Months In their first months of life, infants often cry for no appare
Human mtDNA molecule, showing the locations of HVS I and II regions relative to other mtDNA genes
The progressive transfer during conjugation of various genes
Enhancer trapping to reveal expression patterns of endogenous genes