3. Extensions to Mendelian Inheritance
Sex Chromosome
2:33 minutes
Problem 25
Textbook Question
Textbook QuestionThe Amami spiny rat (Tokudaia osimensis) lacks a Y chromosome, yet scientists at Hokkaido University in Japan have reported that key sex-determining genes continue to be expressed in this species. Provide possible explanations for why male differentiation can still occur in this mammalian species despite the absence of a Y chromosome.
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