Sentences with phrase «female medaka»

Mu - Yun Wang and Hideaki Takeuchi at the University of Tokyo observed female medaka that had become familiar with males.

Interestingly, however, a team of researchers led by Nagoya University previously found that the occurrence of more germ cells — biological cells capable of uniting with one from the opposite sex to form a new individual — in female medaka (teleost fish) gonads is essential for female differentiation of gonads.

Not exact matches

In addition to normal ovarian development, the increased number of gonocytes (fetal and neonatal germ cells) is sufficient for male - to - female sex reversal in XY medaka.

When germ cells are removed in medaka, XX (female) fish show female - to - male sex reversal, while XY (male) fish with excessive germ cells, which is usually associated with egg production, exhibit male - to - female sex reversal.