Friday, April 21, 2023
Sunday, April 23, 2023
Wednesday, March 1, 2023
Sunday, April 23, 2023
问题:下列()通常用来诱导细胞融合。A、烷化剂B、碱基类似物C、聚二乙醇D、γ射线
Thursday, February 29, 2024
问题:根据当地的自然条件、生产需要和原有地方品种的品质等客观条件而确定的改造某一地方品种或品系而进行的育种活动称为()。A、简单育成杂交B、级近育成杂交C、引入育成杂交D、综合育成杂交
Monday, December 25, 2023
Monday, March 11, 2024
Saturday, June 3, 2023
问题:没有种质,物种不可能传代和进化,个体也不可能发育和生长。
Wednesday, October 25, 2023
Tuesday, September 19, 2023
Monday, October 9, 2023
Sunday, January 8, 2023
Friday, April 19, 2024
Wednesday, October 4, 2023
Thursday, July 13, 2023
问题:下列()对本地自然条件有高度适应性。A、本地品种B、外地品种C、育成品种D、引入种
Friday, April 19, 2024
Thursday, July 13, 2023
Saturday, March 4, 2023
问题:杂交育种不包含()。A、自由交配B、种内杂交C、种间杂交D、地理杂交
Friday, April 21, 2023
问题:杂交育种不包含()。A、自由交配B、种内杂交C、种间杂交D、地理杂交
Friday, April 21, 2023