Haldane's Rule ·
Heterogametic Sex Fails First
un
seel
.com · dominance theory · recessive X-linked incompatibility · >95% of crosses
Broken sex
—
Exposed alleles
0
State
—
Species A chromosome
Species B chromosome
Incompatibility allele (recessive)
Fertile hybrid (buffered)
Single X / hemizygous
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Un
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.com · Haldane's Rule
Un
seel
.com · Haldane's Rule