Today's Sentence
Video not in English?Once activated, one of the genes on the Y chromosome known as the SRY gene has two functions: to inhibit certain features of the X chromosome and to impose through dominance the physiological traits that a male must have.
Original Video:We were all female

Karla valle5 years ago
Sunny Shih5 years ago
^ ^
August5 years ago
Thank you, Wen. Have a good one, everyone.
levi4 years ago
soleilwang01175 years ago
Dao Nguyen5 years ago
No
冠智5 years ago
Kiara Rio5 years ago
Jeff Huang5 years ago
veronika5 years ago